1. The Asia Pacific natural gas market: large enough for all?;Aguilera;Energy Policy,2014
2. BAL, 1960. Basic Agrarian Law, Undang‑Undang Pokok Agraria – UUPA, the Directorate General of Agrarian Affairs of the Department of Home Affairs.
3. Bloomberg, 2014, Indonesia Looks Overseas in $25 Billion Refinery Overhaul. 11 December.
4. A note on policies for the oil and gas sector;Boyd;Bulletin of Indonesian Economic Studies,2010
5. The economic cost of global fuel subsidies;Davis;Am. Econ. Rev.: Pap. Proc.,2014