Kantaatmadja, Budi Priyatna Reservoir characterization of the Bekasap "A" sandstones of Kota Batak Field, Riau, Sumatra, Indonesia [microform] / Budi Priyatna Kantaatmadja - Ann Arbor, Mich.: University Microfilms International, 1991 - 4 microfiches ; 11 x 15 cm. Thesis (Ph.D.) - Texas A & M University, 1991 Subjects--Topical Terms: Sandstone--IndonesiaSedimentary structures--Indonesia Subjects--Geographic Terms: Indonesia--Petrology