Purnell, Larry D.
F.A. Davis, 2005
Buku Teks
Donald L. Zimmerman and Denise G. Osborn-Harrison, editors
NY Springer Publishing Company, 2017
Buku Teks
edited, Sharon A. Shueman, Warwick G. Troy and Samuel L. Mayhugh
Charles C. Thomas, 1994
Buku Teks
Fell-Carlson, Deborah L.
Thomson/Delmar Learning, 2008
Buku Teks
Youngkin, Ellis Quinn
Appleton & Lange , 1998
Buku Teks