Gaya APA

Indonesia, P, U. (1989). Feasibility Study Petangis Coal Deposit Block 5 Kalimantan : Section 5 Port Site / Marine Report . : .

Gaya MLA

Indonesia, PT., Utah. "Feasibility Study Petangis Coal Deposit Block 5 Kalimantan : Section 5 Port Site / Marine Report". : , 1989. Text.