Gaya APA

Sutarta, E, S. (2009). Pusat Penelitian Kelapa Sawit Annual Report 2008 (Pertama). Medan: Indonesian Palm Oli Research Institute.

Gaya MLA

Sutarta, Edy, Sigit. "Pusat Penelitian Kelapa Sawit Annual Report 2008". Pertama Medan: Indonesian Palm Oli Research Institute, 2009. Text.