Laporan PPM L001/2024 : Laporan Lawatan '49th International Exhibition Of Inventions Of Geneva 2024' (INVENTIONS GENEVA 2024) Di Palexpo, Geneva, Switzerland, 17 - 21 April 2024 Dr. Rohaya bt. Othman - Perak Pusat Penyelidikan Mineral, Jabatan Mineral Dan Geosains Malaysia 2024 - 25 p. ill., some col 29 cm