Sasithorn, J., D. . Wiwattanadate, and S. Sangsuk. “Utilization of Fly Ash from Power Plant for Adsorption of Hydrocarbon Contamination in Water”. Journal of Metals, Materials and Minerals, vol. 20, no. 1, Apr. 2017, https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/192.