OPTIMIZATION OF AIR SPACING OF SOLAR FLAT PLATE LIQUID COLLECTOR WITH TWO STRUCTURED GLAZING COVERS. International Journal OF Engineering Sciences & Management Research, [S. l.], v. 2, n. 3, p. 11–15, 2015. Disponível em: https://ijesmr.com/index.php/ijesmr/article/view/40. Acesso em: 11 jan. 2026.