1. Abate, T. (2012). Four seasons of learning and engaging smallholder farmers, Progress of Phase 1. Monogragh. International Crops Research Institute for Semi-Arid Tropics, Nairobi, Kenya.
2. Adejuwon, J. O. (2004). Crop yield response to climate variability in the Sudano-Sahelian ecological zones of Nigeria in southwestern Nigeria (pp. 15–16). AIACC Report of Workshop for Africa and Indian Ocean Island.
3. Agbicodo, E. M., Fatokun, C. A., Muranaka, S., Visser, R. G. F., & van der Linden, C. G. (2009). Breeding drought tolerant cowpea: Constraints, accomplishments, and future prospects. Euphytica, 167, 353–370. https://doi.org/10.1007/s10681-009-9893-8
4. Agwu, A. E. (2001). Adoption of improved cowpea production technologies by farmers in north east Savannah Zone of Nigeria. Privatization and commercialization of agriculural extension service delivery in Nigeria: Problems and prospects. In T. A. Olowu (Ed.), Proceedings of the 7th annual national conference of the agricultural extension Society of Nigeria, 19th–22nd August 2001 (pp. 74–81).
5. Agwu, A. E. (2004). Factors influecing adoption of improved cowpea production technologies in Nigeria. Journal of International Agricultural and Extension Education, 11(1), 81–88. https://doi.org/10.5191/jiaee.2004.11109