Arens, Alvin A., author
Englewood Cliffs, N.J., Prentice-Hall of Southeast Asia
Buku Teks
Osborn, Richard N., author
John Wiley & Sons, 1980
Buku Teks
Mundel, Marvin E.
New York, N.Y, McGraw-Hill Book Company
Buku Teks
Rahmasari Nung Yulianti, author
2014
UI - Tesis (Membership)
edited by Bart van Looy and Roland van Dierdonck
Pitman, 1998
Buku Teks