Muamar Zul Ikhwan Mohd Nazeri, A column study of low cost palm oil ash filter media for drinking water treatment / Muamar Zul Ikhwan Mohd Nazeri - viii, 71 pages : illustrations ; 30 cm. Project paper (Bachelor of Civil Engineering) -- Universiti Malaysia Pahang – 2012 Bibliography : p. [65]-68 ISBN: THE0003236(Local) Subjects--Topical Terms: Sewage--Purification--Filtration