Lisa Lynch [and others]
Wiley-Blackwell, 2008
Buku Teks
Beland, Irene L., author
Macmillan, 1970
Buku Teks
Charles Docherty, Jacqueline McCallum, editor
Oxford Univesity Press, 2009
Buku Teks
Earnest, Vicki Vine, author
Scott, Foresman, 1989
Buku Teks
editors, Raymond Daley and Henry Miller
Livingstone, 1971
Buku Teks