Marwan, Marwan, Naoto Azuma, Akinori Maezawa, and Shigeo Uchida. “Characterization of Titania (TiO2) Catalysts Prepared by Sol-Gel Method”. ASEAN Journal of Chemical Engineering 3, no. 1 (December 31, 2003): 26-33. Accessed July 18, 2024. https://jurnal.ugm.ac.id/v3/AJChE/article/view/7576.