Ballard, Ernest, author
Cambridge University Press, 2014
Buku Teks
Matthews, Carole
Little, Brown & Co., 2015
Buku Teks
Stevenson, R. L. (Robert Louis), author
ITTS House, 2013
Buku Teks
Rees, Yvonne, author
Hingkong : Page One Pgublishing, 2002,
Buku Referensi
Dooley, Susan, author
Chronicle Books, 2001
Buku Referensi