“Assessment of Cowpea (Vigna Unguiculata (L.) Walp) F1 Lines Response to Drought Tolerance”. Ghana Journal of Science, Technology and Development 8, no. 1 (May 31, 2022): 48–60. Accessed September 10, 2025. https://www.gjstd.org/index.php/GJSTD/article/view/307.