Laporan PPM R003/2020: Research And Development Of Green Technology For Mine Rehabilitation: Experimental Floating Phytoremediation Of Acid Mine Drainage By Vetiver Grass (Chrysopogon Zizianiode) Under Controlled Environment) August 2020 Mohd Zaid b. Md Sharif - Perak Pusat Penyelidikan Mineral, Jabatan Mineral Dan Geosains Malaysia 2020 - 13 p ill, col, photo 29 cm