Foster, Steve, author
Oxford university press, 2012
Buku Teks
Juwono Sudarsono, author
Department of Defence and Security Republic of Indonesia, 1997
Buku Teks
Lubis, Todung Mulya, author
Gramedia Pustaka Utama, 1993
Buku Teks
Danelius, Hans
The Swedish Institute, 1981
Buku Teks
edited by Kenneth W. Thompson
University Press of America, 1980
Buku Teks