EFFICIENCY OF SOLAR COLLECTORS AND WATER HEATING UNITS AND DEVELOPMENT OF METHODOLOGICAL BASIS OF THEIR THERMAL TESTS. JournalNX - A Multidisciplinary Peer Reviewed Journal, [S. l.], v. 7, n. 03, p. 231–235, 2021. Disponível em: https://repo.journalnx.com/index.php/nx/article/view/2760. Acesso em: 17 jul. 2025.