APA Format
Umar Suryadi Bakry penulis. (2019; © 2017).
Dasar-dasar hubungan internasional / Dr. Umar Suryadi Bakry
. Jakarta :: Prenadamedia Group,.
MLA Format
Umar Suryadi Bakry penulis.
Dasar-dasar hubungan internasional / Dr. Umar Suryadi Bakry
. Jakarta :: Prenadamedia Group,, 2019; © 2017
Chicago Format
Umar Suryadi Bakry penulis. Dasar-dasar hubungan internasional / Dr. Umar Suryadi Bakry. Jakarta :: Prenadamedia Group,, 2019; © 2017.