Essoka, P. A; Essoka, A.N. and Jaiyeoba, I. A. (2014). Soil-landscape relationship on quartz-mica-schist materials of Cross River Plains, South-East Nigeria.. Geo Studies Forum pp 51-62.

Essoka, P.A; Essoka A.N. and Jaiyeoba, I.A. (2012). Characterization and classification of soils for food security in a rainforest area of Cross River State, Nigeria.. Paper accepted for Publication African Journal of Social Science Vol 3 No.2

Essoka, P.A; Essoka, A.N and Jaiyeoba, I. A. (2011). Characterization and classification of soils for food security in a rainforest area of Cross River State, Nigeria.. Paper Presented at the 35th Annual Conference of the Soil Science Society of Nigeria, held at Federal University of Technology, Minna from 7th -11th March.

Essoka, P.A. and Jaiyeoba, I.A. (2008). A study of soils formed along a toposequence on kyanite – gneiss material in a rainforest region of Cross River State, Southeastern Nigeria.. Proceedings of the 50th Annual Conference of the Association of Nigerian Geographers (ANG), pp 30 – 38.

Essoka, P.A., Jaiyeoba, I.A., Essoka, A.N. and Oku, E.E. (2008). A toposequence study of soil formed on kyanite–gneiss materials in a rainforest region of Cross River State, Southwestern Nigeria.. Paper present at the 50th Annual Conference of the Association of Nigerian Geographers held at the Department of Geography, University of Calabar, Calabar, 25th – 29th August.

Essoka, P.A., Jaiyeoba, I.A. and Essoka, A.N. (2007). A toposequence study of soils developed on gneiss and granodiorite on the Cross River rainforest zone. Proceedings of the 31st Annual Conference of Soil Science Society of Nigeria, pp 43 – 51. A toposequence study of soils developed on gneiss and granodiorite on the Cross River rainforest zone. Proceedings of the 31st Annual Conference of Soil Science Society of Nigeria, pp 43 – 51

Jaiyeoba, I. A. (2002). Changes in soil properties due to continuous cultivation in Nigerian semi-arid savannah. Soil and Tillage Research. 70, 91-98.. Elsevier Science.

Jaiyeoba, I. A. (2002). Environment. In: Atlas of Nigeria.. Edition de Jaguar, Paris (ISBN2-86950-360-1) 1st Edition, 122-123.

Jaiyeoba, I. A and Zubair, R. T. (2002). Farmers and trees: A survey of attitude in Zaria area, Nigeria. Paper presented at the annual conference of the Nigerian Geographical Association on Geography and Resources Management in Democratic Nigeria. ABU, Zaria May 2000

Jaiyeoba, I. A. (2001). Soil rehabilitation through afforestation: Evaluation of the performance of eucalyptus and pine plantations in a Nigerian savannah environment. Land Degradation and Development. 12, 183-194.. John Wiley & Sons Ltd

Jaiyeoba, I. A. (2000). Soil erosion in the Nigerian arid and semi -arid regions : An overview. Paper presented at the Soil Erosion and Desertification Problems and Control Techniques workshop organized by. IAR/ABU, Zaria. October 2000.

Jaiyeoba, I.A. (2000). Changes in soil properties related to different Land uses in a semi-arid region wetland, northern Nigeria. Paper presented at the annual conference of the Nigerian Geographical Association on Geography and Resources Management in Democratic Nigeria. ABU, Zaria. May 2000

Jaiyeoba, I.A. (1999). Variation of soils over Basement Complex slopes in part of Nigerian humid savanna.. Department of Geography, ABU 11, 1999.

Jaiyeoba, I. A. (1998). Changes in soil properties related to conversion of savannah woodland into pines and eucalyptus plantations, northern Nigeria. Land Degradation and Development. 9, 207-215.. John Wiley & Sons Ltd

Jaiyeoba, I. A. (1997). An assessment of soil fertility restoration under fallow in Nigerian Savannah. Soil Use and Management 13, 163-164.. CAB International, for British Soil Science Society

Jaiyeoba, I. A. (1996). Changes in organic matter and nutrients of forest soils due to clearing and cropping.. Malaysia Journal of Tropical Geography 27(2), 15-21. Dept. of Geography, Univ. of Malaya, Kuala Lumpur for Malaysia Geographical Association

Jaiyeoba, I. A. (1996). Amelioration of soil fertility by woody perennials in cropping fields: Evaluation of three tree species in the semi-arid zone of Nigeria.. Journal of Arid Environment 3, 475-482. Academic Press Ltd.

Jaiyeoba, I. A (1995). Changes in soil properties related to different land uses in part of the Nigerian semi-arid savannah. Soil Use and Management 11, 84-89.. CAB International, for British Soil Science Society

Jaiyeoba, I.A. (1995). Variation of soil chemical properties over Nigerian savanna.. Singapore Journal of Tropical Geography16 (2), 141-157. Dept. of Geography, National Univ. of Singapore, for Singapore Geographical Association

Jaiyeoba, I. A. (1995). Soil degradation in the Nigerian semi-arid- region: Nature and causes. Paper presented at the annual conference of the Nigerian Geographical Association on Geography and Sustainable Development in Nigerian. Univ. of Benin, Benin, May 1995.

Jaiyeoba, I.A. and Ologe, K.O. (1994). Soil erodibility measurement in Nigeria. Zietschrift fur Geomorphologie: 34(3), 307-312. Society of German Geomrphologists

Jaiyeoba, I.A. and Ologe, K. O. (1994). Soil texture variation in the Nigerian savanna. Nigerian Geographical Journal, 1(New Series) 36-50.. Nigerian Geographical Association

Jaiyeoba, I. A. (1993). Characteristics of Older Granite derived soils as affected by vegetation and slope, Nigeria Geo-Eco-Trop (International J. Tropical Geography & Ecology) 17(1-4), 49-58.. Liege Belgique.

Jaiyeoba, I. A. (1993). Afforestation for soil conservation: How well does it really work? In J.M. Baba et al (eds) Resource Management for Sustainable Development in Nigeria. Proceeding of the annual conference of the Nigerian Geographical Association on, April 1993, p 11-20. Federal Univ. of Technology, Minna.

Jaiyeoba, I. A. and Ologe, K. O. (1990). Comparative performance analysis of some erodibility indices for selected Nigerian soils. Paper presented at the NGWG Symposium on Assessment and Management of Land Degradation in Nigeria. OAU, Ile-Ife April 1990

Jaiyeoba, I.A. and Ologe, K. O. (1989). Spatial pattern of soil effective depth over West Africa. Zietschrift fur Geomorphologie: 33(2), 143-150.. Society of German Geomorphologists.

Jaiyeoba, I. A (1989). Variation of organic carbon and nitrogen over the Nigerian savanna. Zaria Geographer, 3, 9-19.. Geographical Society, ABU, Zaria Nigeria.

Jaiyeoba, I.A. (1988). Build–up of organic matter and nutrients under fallow in a tropical rainforest environment, Nigeria.. Malaysia Journal of Tropical Geography, 18,10-16 Dept. of Geography, Univ. of Malaya, Kuala Lumpur, for Malaysian Geographical Association.

Jaiyeoba, I. A. (1988). Soil variability within land facets under a savanna climate, northern Nigeria. Geo- Eco-Trop., (International J.. Tropical Geography & Ecology)12 (1- 4), 105-114 Liege Belgique

Jaiyeoba, I. A.; Ologe, K. O. and Sam, H.M. (1988). Soil degradation under hand-hoe and mechanical tillage systems: A case study from Zaria area. Paper presented at the Nigerian Geomorphological Working Group (NGWG) symposium on Land Degradation in Nigeria,.. Univ. of Benin, Benin, Sept. 1988

Jaiyeoba, I. A. and Ologe, K. O. (1986). Soil erosion rate under simulated rainfall. Paper presented at the Association of Geoscientist for International Development (AGID) and Inter- Union Commission on the Lithosphere (ICL) symposium on Soil Erosion and Flooding in Nigeria. Port Harcourt

Jaiyeoba, I. A. and Leow, K. S. (1984). Effect of tillage on soil aggregation and pH in part of Nigerian semi-arid savanna. Paper presented at the annual conference of the Nigerian Geographical Association,. Univ. of Nigeria, Nsukka March 1984

Leow, K. S. and Jaiyeoba, I. A. (1982). Erodibility of some northern Nigerian soils.. In D.E. Ajakaiye et al. (eds). Erosion and Desertification in Nigeria. Proceedings of the Association of Geoscientist for International Development (AGID) and Inter- Union Commission on the Lithosphere (ICL) symposium held in Kaduna, February 1982, p8-16.