1. Abstract of Agricultural Statistics. 2019. Department of Agriculture, Forestry and Fisheries (DAFF). Pretoria, South Africa.
2. Ajeigbe, H.A., Ekeleme, F., Chikoye, D. 2010. Improved Crop– livestock System for Enhanced Food Security and Income Generation in West Africa: Final Project Report: Gatsby Improved Crop - livestock Project. International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 50p.
3. Phytochemical screening and nutrient composition of selected tropical green leafy vegetables;Akindahunsi;Afr. J. Biotechnol.,2005
4. A Review of Indigenous Food Crops in Africa and the Implications for more Sustainable and Healthy Food Systems;Akinola;Sustainability,2020
5. Amablc, R.A.. and J. Rugambisa. 1992. Supply, demand, and marketing channels for cowpea in southern Africa. Pages 4-11 in Cowpea technology transfer to smallholders, edited by R.A. Amabte and D.M. Naik. SADC/IITA. Maputo. Mozambique.