Esposito, Vincnet
Praeger, 1965
Buku Teks
Alexandrescu, Vasile
Military Pub. House, 1985
Buku Teks
La Fargue, Thomas Edward
Stanford University Press, 1937
Buku Teks
Snyder, Louis L., author
Van Nostrand Company, 1958
Buku Teks
Muhamad Husni Mubarok, author
2015
UI - Skripsi (Membership)