HASSAN, Abdulsalam D. M.; HUSSEIN, Rwaa Alaa. The Variation Effect of Collector Tilt Angle on the Heat Pipe Solar Collector Performance. Wasit Journal of Engineering Sciences, [S. l.], v. 6, n. 2, p. 21–27, 2018. DOI: 10.31185/ejuow.Vol6.Iss2.88. Disponível em: https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/88. Acesso em: 15 feb. 2026.