C. K. , Ronno. Estimation of Global Radiation using Angstrom-Type Models at Selected Sites in Kenya . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 4, n. 2, p. Pg 63–70, 2017. Disponível em: http://ajest.org/index.php/ajest/article/view/158. Acesso em: 3 apr. 2026.