“A STUDY ON THE POTENTIAL OF RIVERBANK FILTRATION FOR THE REMOVAL OF COLOR, IRON, TURBIDITY AND E.COLI IN SUNGAI PERAK, KOTA LAMA KIRI, KUALA KANGSAR, PERAK, MALAYSIA”. Jurnal Teknologi (Sciences & Engineering) 74, no. 11 (June 25, 2015). Accessed September 13, 2026. https://journals.utm.my/jurnalteknologi/article/view/4877.