ECONOMIC ANALYSIS AND MAPPING OF RICE VALUE CHAIN ACTORS IN KATSINA STATE, NIGERIA. Quantum Journal of Engineering, Science and Technology, [S. l.], v. 5, n. 2, p. 25–37, 2024. Disponível em: https://www.qjoest.com/index.php/qjoest/article/view/141. Acesso em: 17 jun. 2026.