Basheer Graphic Books, 2007
Buku Referensi
Gluck, Peter L., author
Rockport Publishers, 1997
Buku Teks
King's Crown Press, 1948
Buku Teks
Nation, I.S.P., author
Cambridge University Press, 2013
Buku Teks
Pilcher, Rosamunde, author
Coronet Books, 1990
Buku Teks