ASSESSMENT OF EMPIRICAL MODELS FOR ESTIMATING MEAN MONTHLY GLOBAL SOLAR RADIATION IN KATSINA. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 3, n. 1, p. 333–344, 2023. Disponível em: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/1462. Acesso em: 11 sep. 2025.