Batieno, Benoit Joseph, Jean-Baptiste Tignegre, Sidibe Hamadou, Zongo Hamadou, Tinga Jeremy Ouedraogo, Eric Danquah, and Kwadwo Ofori. 2016. “Field Assessment of Cowpea Genotypes for Drought Tolerance”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 30 (4):358-69. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/6623.