“PH-DEPENDENT ADSORPTION DESORPTION OF DYE MOLECULES USING MAGNETICALLY SEPARABLE QUARTZ SAND”. Jurnal Teknologi (Sciences & Engineering) 84, no. 3 (March 31, 2022): 1–8. Accessed December 6, 2025. https://journals.utm.my/jurnalteknologi/article/view/17544.