Kathleen McCartnet; Deborah Phillips
Blackwell, 2006
Buku Teks
Evans, Ellis D.
Holt, Rinehart and Wiston, 1971
Buku Teks
Herr, Judy, author
Wadsworth and Cengage Learning, 2013
Buku Teks
Podmore, Valerie N. , author
McGraw-Hill, 2012
Buku Teks
Nicola Yelland
Open University Press, 2010
Buku Teks