-. (1989). Oil & gas fields atlas: 1.North Sumatra & Natuna 2.Central Sumatra 3.South Sumatra 4.Java 5.Kalimant. Indonesian Petroleum Association.
Chicago Style (17th ed.) Citation-. Oil & Gas Fields Atlas: 1.North Sumatra & Natuna 2.Central Sumatra 3.South Sumatra 4.Java 5.Kalimant. Indonesian Petroleum Association, 1989.
MLA (8th ed.) Citation-. Oil & Gas Fields Atlas: 1.North Sumatra & Natuna 2.Central Sumatra 3.South Sumatra 4.Java 5.Kalimant. Indonesian Petroleum Association, 1989.
Warning: These citations may not always be 100% accurate.