Laporan PPM K009/2007: Laporan Menghadiri Persidangan Pengurusan Sisa Pepejal 2007 'Waste Management Conference And Exhibition' Sunway Pyramid Convention Centre Petaling Jaya, Selangor, 07 - 08 Ogos 2007 Abdul Kahar b. Embi - Perak Pusat Penyelidikan Mineral, Jabatan Mineral Dan Geosains Malaysia 2007 - 255 p. ill.; some col. 29 cm