Andriesse, Edo
Utrecht University, 2008
Buku Teks
edited by Richard Robison and David S.G. Goodman
Routledge, 1996
Buku Teks
Hirsch, Philip
The Jacaranda press, 1991
Buku Teks
Collinwood, Dean W., author
McGraw-Hill, 2001
Buku Teks
Collinwood, Dean W., author
McGraw-Hill, 1999
Buku Teks