Olayinka , A., Kolawole , A., & Ilori , C. (2020). Assessment of variation in the agronomic traits of wild cowpea (Vigna unguiculata (L.) Walp.) subspecies under a rainforest agro-ecology in Nigeria. GSC Biological and Pharmaceutical Sciences, 11(3), 244–253. https://doi.org/10.30574/gscbps.2020.11.3.0188