Nik Azimatolakma AwangHamidi Abdul AzizMohammed J.K. BashirMuhammad Umar2024-11-042024-11-042013-02http://dx.doi.org/10.1080/19443994.2012.735813https://dspace-cris.utar.edu.my/handle/123456789/6116Comparative removal of suspended solids from landfill leachate by Hibiscus rosa-sinensis leaf extract and alumjournal-article