Skullong, S. “Performance Enhancement in a Solar Air Heater Duct With Inclined Ribs Mounted on the Absorber”. Journal of Research and Applications in Mechanical Engineering 5, no. 1 (July 25, 2018): 55–64. Accessed April 17, 2024. https://ph01.tci-thaijo.org/index.php/jrame/article/view/136600.