ECONOMIC EFFICIENCY OF SMALL-HOLDER WHEAT FARMERS AROUND HADEJIA VALLEY IRRIGATION SCHEME IN JIGAWA STATE, NIGERIA. FUDMA Journal of Agriculture and Agricultural Technology, [S. l.], v. 9, n. 1, p. 206–217, 2023. DOI: 10.33003/jaat.2023.0901.26. Disponível em: https://jaat.fudutsinma.edu.ng/index.php/jaat/article/view/120. Acesso em: 23 jan. 2026.