Savin-Baden, Maggi, author
The Society for research into Higher Education; Open University Press, 2003
Buku Teks
Azer, Samy, author
Elsevier, 2008
Buku Teks
Amador, Jose A., author
Anker Publishing, 2006
Buku Teks
edited by Oon-Seng Tan
Cengage Learning, 2009
Buku Teks
Carroll, Robert G., author
Saunders/Elsevier, 2010
Buku Teks