Lippincott , 2004
Buku Teks
edited by Patti Rager Zuzelo
Jones and Bartlett Publishers, 2010
Buku Teks
Hodgson, Barbara B., author
W.B. Saunders, 1997
Buku Referensi
Spratto, George R., author
Delmar Cengage learning, 2010
Buku Referensi
Siviter, Bethann
Bailliere Tindall, 2013
Buku Referensi