Murphy, Jefrie G., author
D. Reidel Publishing Company, 1979
Buku Teks
Universitas Indonesia, 2014
UI - Skripsi (Membership)
Gellner, Ernest, author
Cambridge University Press, 1979
Buku Teks
Hook, Sidney, author
Southern Illinois University Press, 1980
Buku Teks
edited by Colin M. Turnbull
Kingsport Press, 1973
Buku Teks