AKRAM, U.; NAZAR, A.; IMRAN, M.; AHMAD, N.; ZUBAIR, H. M. Experimental Analysis and Cost Comparison of Evacuated-Tube Solar Water Geyser with Flatbed Solar Water Geyser Fabricated as per Local Conditions of Pakistan. Pakistan Journal of Engineering and Technology, [S. l.], v. 2, n. 2, p. 17–21, 2019. DOI: 10.51846/vol2iss2pp17-21. Disponível em: https://journals.uol.edu.pk/pakjet/article/view/107. Acesso em: 6 jul. 2025.