Heye, Dennie, author
Chandos Publishing, 2006
Buku Teks
Stachokas, George, author
Chandos, 2014
eBooks
Kitahara, Yasusada
Heinemann Educational Books, 1983
Buku Teks
Brophy, Peter, author
Library Association Publishing, 2002
Buku Teks
Noe, Nancy W., author
Chandos, 2013
eBooks