TY - JOUR T1 - Synthesis of Amorphous Silica from Rice Husk Ash: Comparing HCl and CH3COOH Acidification Methods and Various Alkaline Concentrations AU - Donanta Dhaneswara,Jaka Fajar Fatriansyah,Frans Wensten Situmorang,Alfina Nurul Haqoh JO - International Journal of Technology VL - 11 IS - 1 SP - 291 EP - 319 PY - 2020 DA - 2020/01/29 SN - 2087-2100 DO - https://doi.org/10.14716/ijtech.v11i1.3335 UR - https://ijtech.eng.ui.ac.id/article/view/3335