Skilling, Gordon H.
The Ryerson Press , 1945
Buku Teks
W.W. Norton and Company Inc., 1957
Buku Teks
Crocker, Walter R. (Walter Russell), 1902-
Melbourne University Press, 1971
Buku Teks
Muhammad Ibrahim Hamdani
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2018
UI - Tesis Membership
Universitas Indonesia, 2002
UI - Skripsi Membership