Viswanatha, K.P., and L.N. Yogeesh. 2017. “Genetic Variation and Morphological Diversity in Cowpea (Vigna Unguiculata L. Walp)”. Archives of Agriculture and Environmental Science 2 (3):176-80. https://aesacademy.org/journals/index.php/aaes/article/view/02-03-08.