Cameron, Deborah, author
Macmillan, 1992
Buku Teks
Langacker, Ronald W.
Harcout Brace Jovanovch, 1972
Buku Teks
Sandler, Wendy, author
Cambridge University Press, 2006
Buku Teks
Woo, Joseph Yam Ting, author
Qesosa Education Publication, 2004
Buku Teks
edited by Ralph Ludwig, Peter Mühlhäusler and Steve Pagel
Cambridge University Press, 2019
Buku Teks