Andrew N. Weintraub, editor
Routledge, 2011
Buku Teks
Lynch, Gordon, author
Blackwell Publishing, 2005
Buku Teks
Storey, John, 1950-, author
Prentice-Hall, 2000
Buku Teks
Gary Burns, editor
Wiley Balckwell, 2016
Buku Teks
edited by Alan McKee
Blackwell , 2007
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