Techarungpaisan, Pisit, Asoke Shithongtum, Bancha Buddadee, Songsupa Pumchumpol, and Songsupa Pumchumpol. “Performance improvement of thermosyphon solar water heater: minimizing water flow rate in some risers of the solar collector (Thai)”. Asia-Pacific Journal of Science and Technology 14, no. 1 (April 13, 2017): 41–54. accessed March 7, 2026. https://so01.tci-thaijo.org/index.php/APST/article/view/83090.