Yakubu, S., Atman, F. M., Usman, A. B., Mohammed, R. ECONOMICS OF FACTORS AFFECTING PRODUCTION AND RESOURCE - USE EFFICIENCY OF COWPEA IN NORTH – EASTERN STATES OF NIGERIA. JASD [Internet]. 2024 Apr. 30 [cited 2024 Dec. 12];7(1):74-82. Available from: https://njaat.com.ng/index.php/jasd/article/view/673