Variation Characteristics of Photosynthetically Active Radition (Par) Over Ilorin in the Tropics. Global Journal of Science Frontier Research, [S. l.], v. 12, n. A8, p. 5–8, 2012. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/100342. Acesso em: 6 feb. 2026.