Palmer, Barbara C.
Allyn and Bacon, 1994
Buku Teks
Mills, Paul
Routledge, 2006
Buku Teks
Mills, Paul
Routledge, 2006
Koleksi Publik
Johns, Ann M.
Cambridge University Press, 1997
Koleksi Publik
Johns, Ann M.
Cambridge University Press, 1997
Buku Teks