Phinney, Donna J., author
Thomson, 2004
Buku Teks
Thomson Delmar Learning, 2008
Multimedia
Bird, Doni L., author
Elsevier, 2015
Buku Teks
Hollins, Carole, author
Wiley Blackwell, 2013
Buku Teks
Hollins, Carole, author
Blackwell Munksgaard, 2006
Buku Teks