Gerlach, Mary Jo Mirlenbrink, author
Delmar, Cengage Learning, 2014
Buku Teks
Mara, Cynthia Massie, editor; Olson, Laura Katz, editor
CRC Press, 2008
Buku Referensi
Pratt, John R., author
Jones & Bartlett Learning, 2010
Buku Teks
Sorrentino, Sheila A., author
Elsevier Mosby, 2011
Buku Teks
Singh, Douglas A., 1946-
Jones and Bartlett Learning, 2010
Buku Teks