UMURQULOV , S.; XAKIMOV , M. THE EFFECT OF SOLAR RADIATION INTENSITY ON THE PERFORMANCE EFFICIENCY OF FLAT SOLAR AIR HEATERS. Educational Research in Universal Sciences, [S. l.], v. 3, n. 6, p. 81–88, 2024. Disponível em: http://erus.uz/index.php/er/article/view/6284. Acesso em: 24 nov. 2024.