Pozgar, George D., author
Jones & Bartllett, 2010
Buku Teks
edited by Robyn Martin and Linda Johnson
Cavendish, 2001
Buku Teks
edited by Mildred Kaufman
An Aspen Publication, 1990
Buku Referensi
Liebler, Joan Gratto, author
Jones & Bartlett Learning, 2012
Buku Teks
Bernstein, Lewis
Norwalk Appletton century crofts , 1985
Buku Teks