Brennan, Christopher, author
University of Queensland, 1984
Buku Teks
Collins, F. Howard, author
Oxford University Press , 1973
Buku Teks
Prentice-Hall, 2000
Buku Teks
Lawson, Henry, 1867-1922, author
University of Queensland Press, 1976
Buku Teks
Amin Sweeney, author
Center for South and Southeast Asia Studies. University of California, 1980
Buku Teks