Hewer, Judy
[publisher not identified], 1976
Buku Teks
Brandon, Lee, 1965-1993, author
Wadsworth and Cengage Learning, 2012
Buku Teks
Diessel, Holger, author
Cambridge University Press, 2006
Buku Teks
compiled and translated by Ismail Mazhar
The Renaissance Bookshop, 1950
Buku Referensi
Pack, Alice C.
Newbury House Pub., 1980
Buku Teks