ONAFESO, O. D. . Time-space distribution analysis of Direct Solar Radiation in Nigeria . Journal of Geography and Social Sciences, [S. l.], v. 2, n. 1, p. 1–17, 2020. DOI: 10.12345/jgss.v2i1.6. Disponível em: http://jgss.uob.edu.pk/journal/index.php/jgss/article/view/6. Acesso em: 19 jan. 2026.