Philp, Hugh
Macquarie University, 1984
Buku Teks
Fraser, David J., author
International Development Program of Australian and Colleges, 2006
Buku Referensi
edited by Gareth Williams, Martin Kenyon and Lynn Williams
Overseas Student Trust, 1987
Buku Referensi
Saxena, Subhash C.
Dhanpat Rai & Sons, 1989
Buku Teks
The British Council, 1959
Buku Teks