Williams, L.A. (Leonard Aimslie), 1909-
American Elsevier Publishing Company, INC, 1968
Buku Teks
Andrean Pratama, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2017
UI - Skripsi (Membership)
Starreveld, R.W., author
Alphen aan den Rijn Samson, 1968
Buku Teks
Hawken, Paul, author
Tian Xia Wen Hua, 1994
Buku Teks
Hawken, Paul, author
Tianxia Wenhua Chuban, 1994.
Buku Teks