St. Leonards Allen and Unwin , 1996
Buku Teks
Wang, Gungwu, author
Allen & Unwin, 1992
Buku Teks
Greenwood, Gordon, 1913-1986, author
McGraw-Hill, 1974
Buku Teks
Burke, Anthony, author
Cambridge University Press, 2008
eBooks
Arndt, Heinz Wolfgang, 1915-2002, author
F.W. Cheshire , 1968
Buku Teks