ONAFESO, O. D. . Time-space distribution analysis of Direct Solar Radiation in Nigeria . Journal of Geography and Social Sciences (JGSS), [S. l.], v. 2, n. 1, p. 1–17, 2020. Disponível em: http://jgssjournal.uob.edu.pk/journal/index.php/jgss/article/view/6. Acesso em: 8 may. 2024.