edited by, Frances Christie and Ray Misson
Routledge, 1998
Buku Teks
Deem, Rosemary, author
Routledge, 2012.
Buku Teks
Richard Arum, Irenee R. Beattie, Merced, Karly Ford, editors
SAGE Publications, 2015
Buku Teks
Adelson, Joseph, author
Transaction Books, 2008
Buku Teks
McGraww-Hill, 1979
Buku Teks