1.
Agbogidi OM, Egho E. Evaluation of eight varieties of cowpea (Vigna unguiculata (L.) Walp) in Asaba agro-ecological environment, Delta State, Nigeria. EJSD [Internet]. 2012Jun.1 [cited 2024Nov.22];1(2):303. Available from: http://ojs.ecsdev.org/index.php/ejsd/article/view/20