Nur Azurah Bt Maszalan Petrologi Dan Geokimia Organik Arang Batu Terpilih Sarawak Nur Azurah Bt Maszalan - Kuala Lumpur Universiti Malaya 2002 - xii,72 pg. ill.; some col. 30 cm Includes bibliography index Subjects--Topical Terms: Petrology