Uddin, M. J., Khan, M. M. R., Iftekhar, M. S. and Islam, M. A. (2006) “Cr(VI) Removal from Wastewater by Using Rice Husk Ash (RHA)”, ASEAN Journal of Chemical Engineering, 6(1), pp. 53-57. Available at: https://jurnal.ugm.ac.id/v3/AJChE/article/view/7659 (Accessed: 23November2024).