RONNO , Cosmas; MAKAU , Nicholas; AMOLO , George; ROTICH , Samuel. Estimation of Global Radiation using Clear-Sky Model at Selected Sites in Kenya . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 3, n. 4, p. Pg 97–103, 2017. Disponível em: http://ajest.org/index.php/ajest/article/view/192. Acesso em: 3 apr. 2026.