Crosbie, Michael J., author
Images Publishing Group, 2003
Buku Teks
Andrea L. Arias, author
Taylor and Francis, 2018
Artikel Jurnal
C.S. Lim
The Department of English University of Malaya, [date of publication no identified]
Buku Teks
1964
Buku Teks
Freeland, Cynthia A., author
Oxford University Press, 2001
Buku Teks