Vickers, Adrian, 1958-, author
Cambridge University Press, 2013
Buku Teks
Vickers, Adrian, author
Cambridge University Presss, 2007
Buku Teks
Vickers, Adrian, author
Cambridge University Press, 2010
Buku Teks
Cribb, Robert Bridson, author
Longman, 1995
Buku Teks
Ricklefs, Merle Calvin, 1943-, author
Palgrave Macmilan, 2008
Buku Teks