Barnes, Ralph M. (Ralph Mosser), author
John Wiley & Sons, 1961
Buku Teks
Cochran, William G., author
Penerbit Universitas Indonesia (UI-Press), 2005
Buku Teks
Slonim, Morris James
Simon & Schuster , 1960
Buku Teks
Gandaria Restu Siwi, author
Universitas Indonesia, 2015
UI - Skripsi (Membership)
Napitupulu, Margarethe, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1981
UI - Skripsi (Membership)