Optimum Tilt Angle of Photovoltaic Panels for Some Iraq Cities. Journal of University of Babylon for Engineering Sciences, [S. l.], v. 26, n. 1, p. 155–163, 2017. Disponível em: https://journalofbabylon.com/index.php/JUBES/article/view/1191. Acesso em: 24 apr. 2025.