White, Patrick, 1971-, author
Palgrave Macmillan, 2009
Buku Teks
Egmose, Jonas, author
Routledge, 2015
Buku Teks
Robson, Colin, author
Oxford, 2002
Buku Teks
Seltzer, Richard A., author
St. Martin's Press, 1996
Buku Teks
Leavitt, Fred, author
C. Brown Publishers , 1991
Buku Teks