Mikalachki, Jodi, author
Routledge, 1998
Buku Teks
Sharpe, James, author
Routledge, 2019
Buku Teks
edited by Margo Todd
Routledge, 1995
Buku Teks
Wilcox, Helen, author
John Wiley & Sons Inc,, 2014
Buku Teks
Schwyzer, Philip, author
Cambridge University Press, 2009
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