Songkanam, Boonyarporn, Ampol Wongsa, Vanchai Sata, and Kitirote Wantala. “Characterizations and Its Efficiency on Dye Removal of Fly Ash Mixed With Titanium Dioxide Photocatalyst”. Journal of Engineering, RMUTT 18, no. 1 (June 26, 2020): 101–110. Accessed May 2, 2024. https://ph01.tci-thaijo.org/index.php/jermutt/article/view/241889.