Songkanam, B., Wongsa, A., Sata, V. and Wantala, K. (2020) “Characterizations and Its Efficiency on Dye removal of Fly Ash Mixed with Titanium Dioxide Photocatalyst”, Frontiers in Engineering Innovation Research, 18(1), pp. 101–110. available at: https://ph01.tci-thaijo.org/index.php/jermutt/article/view/241889 (accessed: 12 September 2026).