Gaya APA

Purnomo, H. (2009). Lemigas Scientific Contributions to Petroleum Science & Technology Vol. 32 No 2 August 2009 (Agustus 2009). Jakarta: Grafika LEMIGAS.

Gaya MLA

Purnomo, Hadi. "Lemigas Scientific Contributions to Petroleum Science & Technology Vol. 32 No 2 August 2009". Agustus 2009 Jakarta: Grafika LEMIGAS, 2009. Text.