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Jonathan, S., Joseph, M., Idenyi, E. S., Hamidu, K. TECHNICAL EFFICIENCY OF SOLE COWPEA PRODUCTION IN ADAMAWA STATE, NIGERIA. JASD [Internet]. 2022 Sep. 21 [cited 2024 Apr. 23];5(3):1-14. Available from: http://njaat.atbu.edu.ng/index.php/jasd/article/view/329