NGUYEN , D.; LE , . M. N. Evaluating the effects of weather conditions on the useful heat gain of the solar water heating system . Journal of Technical Education Science, [S. l.], v. 11, n. 4, p. 78–84, 2016. Disponível em: https://www.jte.edu.vn/index.php/jte/article/view/452. Acesso em: 7 apr. 2026.