Wortis, Joseph
The Bobbs-Merrill, 1963
Buku Teks
edited by Michael P. Levine
Routledge Press, 2000
Buku Teks
Dicenso, James J., author
Routledge, 1999
Buku Teks
Marcuse, Herbert, author
The Beacon Press, 1956
Buku Teks
Aan Suhaeni, author
Universitas Indonesia, 1988
UI - Skripsi (Membership)