Effect of Crop Residues on Sorghum Output in Sokoto and Zamfara States, Nigeria: Using Four Functional Forms of OLS Model. UNIZIK Journal of Agricultural Economics and Extension, [S. l.], v. 1, n. 1, p. 181–188, 2024. Disponível em: https://journals.unizik.edu.ng/ujaee/article/view/4017. Acesso em: 26 apr. 2025.