Youngkin, Ellis Quinn, author
Appleton & Lange , 1998
Buku Teks
Allen, Karen M., author
J.B. Lippincott, 1997
Buku Teks
edited by Cath Rogers-Clark
Maclennan + Petty , 1998
Buku Teks
Carcio, Helen A., author
Lippincott , 1999
Buku Teks
edited by Brenna H. Mayer
lippincott Willims & Wilkins, 2005
Buku Teks