JONATHAN, S.; ADEBAYO, E. F.; JOSEPH, M.; TARKI, S. K. PRODUCTIVITY MEASUREMENTS IN SOLE COWPEA FARMING: A CASE STUDY OF NORTHERN AGRICULTURAL ZONE OF ADAMAWA STATE, NIGERIA. International Journal of Global Affairs, Research and Development, [S. l.], v. 1, n. 1, p. 97–103, 2023. Disponível em: https://ijgard.com/index.php/ijgard/article/view/12. Acesso em: 8 nov. 2024.