C.S. Lim
The Department of English University of Malaya, [date of publication no identified]
Buku Teks
edited, James Vinson
ST. James Press, 1985
Buku Teks
Elton, Lord
Collins, 1945
Buku Teks
Mansergh, Nicholas
Royal Institute Of International Affair, 1948
Buku Teks
Caiden, Gerald E.
Melbourne University Press, 1967
Buku Teks