Akram, Umer, Ahmad Nazar, Muhammad Imran, Nadeem Ahmad, and Hafiz Muhammad Zubair. 2019. “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 2 (2):17-21. https://doi.org/10.51846/vol2iss2pp17-21.