Clark, Mary Jo, author
Prentice-Hall, 2003
Buku Teks
Clark, Mary Jo, author
Appleton & Lange, 1999
Buku Teks
edited by Victoria Schoolcraft
John Wiley & Sons, 1984
Buku Teks
edited by Barbara Walton Spradley
J.B. Lippincott, 1997
Buku Teks
McEwen, Melanie, author
W.B. Saunders , 1998
Buku Teks