Nathanael Iskandar, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1970
UI - Disertasi (Membership)
Brown, Lester R.
W.W. Norton & Company, Inc., 1974
Buku Teks
Petersen, William, author
Macmillan, 1961
Buku Teks
Petersen, William, author
Macmillan, 1969
Buku Teks
Petersen, William, author
Macmillan, 1969
Buku Teks