“ADSORPTIVE REMOVAL OF METHYLENE BLUE AND ACID ORANGE 7 BY HEXADECYLTRIMETHYLAMMONIUM BROMIDE MODIFIED RICE HUSK”. Jurnal Teknologi 78, no. 3-2 (March 9, 2016). Accessed July 23, 2024. https://journals.utm.my/jurnalteknologi/article/view/7824.