Gaya APA

SOEMARDAN, S. et al (2013). Production optimatization for plan of gas field development using marginal cost analysis . Jakarta: Direktorat Riset & Pengab. Masy UI.

Gaya MLA

SOEMARDAN, Suprapto. et al. "Production optimatization for plan of gas field development using marginal cost analysis". Jakarta: Direktorat Riset & Pengab. Masy UI, 2013. Artikel.