Greenwood Press, 1986
Buku Referensi
Sage, Lorna
Cambridge Univesity Press, 1999
Buku Referensi
edited by Janet Todd
Routledge, 1985
Buku Referensi
edited by Langdon Lynne Faust
Ungar, 1988
Buku Referensi
Davis, Gwenn
London : Mansell Publishing Limited, 1991,
Buku Referensi