Slonim, Morris James
Simon & Schuster , 1960
Buku Teks
Gandaria Restu Siwi, author
Universitas Indonesia, 2015
UI - Skripsi (Membership)
Barnes, Ralph M. (Ralph Mosser), author
John Wiley & Sons, 1961
Buku Teks
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1990
UI - Skripsi (Membership)
Tryfos, Peter
John Wiley & Sons, 1996
Buku Teks