Gaya APA

Sumartini, M. (1992). Factors affecting palm oil trade between Indonesia and the European community . Ann Arbor, MI: University microfilms international (UMI). Dissert.

Gaya MLA

Sumartini, Maria. "Factors affecting palm oil trade between Indonesia and the European community". Ann Arbor, MI: University microfilms international (UMI). Dissert, 1992. Buku.