Menno, S.
Rajawali, 1992
Buku Teks
Nadel, S.F. (Siegfried Frederick), author
The Free Press of Glencoe, 1964
Buku Teks
P.M. Laksono, author
Gadjah Mada University Press, 1985
Buku Teks
Balandier, Georges, author
Rajawali, 1986
Buku Teks
Balander, Georges
Penguin Books, 1970
Buku Teks