Collinson, Patrick, author
Clarendon Press, 1982
Buku Teks
edited by Hanneman Samuel and Henk Schulte Nordholt
Pustaka Pelajar, 2004
Buku Teks
edited by Peter Cumper, Tom Lewis
Edward Elgar, 2012
Buku Teks
Singleton, Andrew, author
SAGE, 2014
Buku Teks
Stuart-Fox, David J., author
KITLV, 2002
Buku Teks