Wallace, Michael J., author
Cambridge University Press, 2004
Buku Teks
edited by Harriet Luria, Deborah M. Seymour, Trudy Smoke
LEA, 2006
Buku Teks
Farrell, Thomas S. C., author
Corwin Press, 2006
Buku Teks
Mudd, Norma
Hodder & Stoughton Educational , 1998
Buku Teks
Watcyn-Jones, Peter
Penguin books, 1995
Buku Teks