Ahungwa, G. T., Mukhtar, U., and Muhammad, K. M. “TRENDS ANALYSIS OF COWPEA AREA AND PRODUCTIVITY IN NIGERIA FROM 2006 - 2018”. Journal of Agripreneurship and Sustainable Development 3, no. 3 (September 1, 2020): 172–180. Accessed June 18, 2024. https://njaat.atbu.edu.ng/index.php/jasd/article/view/147.