Mohamad Zuhairy Ab Rasid Removal Al Of Heavy Metals From Landfill Leachate By Natural And Commercial Materials Using Column Experiment University Malaya Mohamad Zuhairy Ab Rasid - Kuala Lumpur Malaysia 2014 - ix,79pg ill, col, photo, table,graphic 30cm Appendix added Bibliographic added Subjects--Topical Terms: Phyical and Chemical Metallurgy--Malaysia