Whyte, Robert Orr, author
Westview Press, 1982
Buku Teks
edited by Barbara Ching and Gerald W. Creed
Routledge , 1997
Buku Teks
Selly Riawanti, author
2002
UI - Disertasi (Membership)
Zulyani Hidayah, author
1993
UI - Tesis (Membership)
Polson, Robert A., author
Cornell University , 1956
Buku Teks