Maleiva, L. T. N., C. W. Purnomo, P. W. Nugraheni, E. Kusumawardhani, and L. S. A. Putra. “Zeolite Effect on Solid Product Characteristics in Hydrothermal Treatment of Household Waste”. ASEAN Journal of Chemical Engineering, Vol. 23, no. 1, June 2023, pp. 52-61, https://jurnal.ugm.ac.id/v3/AJChE/article/view/9271.