Deem, Rosemary, author
Routledge, 2012.
Buku Teks
edited by, Frances Christie and Ray Misson
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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