Potter, Norman N.
Avi Pub., 1973
Buku Teks
Y.H. Hui, editor-in-chief
Wiley, 1992
Buku Referensi
Muhammad Ashraf, editor
[, Springer], 2012
eBooks
Ahmad Arief Yudansha
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2017
UI - Tesis Membership
edited by David J. Bennett, Richard C. Jennings
Cambridge University Press, 2014
Buku Teks