Gallo, J., J. Borja, S. Gallardo, P. Ngaotrakanwiwat, C. Salim, and H. Hinode. “Nanotitania-Activated Carbon With Enhanced Photocatalytic Activity: A Comparison Between Suspended and Immobilized Catalyst for Turquoise Blue Removal”. ASEAN Journal of Chemical Engineering, Vol. 11, no. 2, Dec. 2011, pp. 59-69, https://dev.journal.ugm.ac.id/v3/AJChE/article/view/8092.