LOW COST AUTOMATIC SUN PATH TRACKING SYSTEM. Journal of Engineering, [S. l.], v. 17, n. 01, p. 116–129, 2011. DOI: 10.31026/j.eng.2011.01.09. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/2892.. Acesso em: 23 jul. 2024.