Bachman, Ronet, author
McGraw-Hill, 2008
Buku Teks
Champion, Dean J., author
Pearson/Prentice Hall, 2006
Buku Teks
Travis C. Pratt, editor
Routledge, 2012
Buku Teks
Bachman, Ronet, author
Pine Forge Press, 2003
Buku Teks
Joyce, Peter, author
Routledge, 2018
Buku Teks