Constantine Bin Joannes <br/><br/>
Laporan PPM K019/2023: Laporan Menghadiri Kursus 'Seminar On Mineral Resources And Technology (Smart)' Di Hotel Grand Riverview, Kota Bharu, Kelantan  28 Ogos 2023 
Constantine Bin Joannes 
 - Ipoh  Pusat Penyelidikan Mineral, Jabatan Mineral Dan Geosains Malaysia  2023 
 - 9 p.  ill.; some col.  2023