Canter, David
Buku Teks
Ashford, Jose B, author
Thomson Brooks, 2006
Buku Teks
Ruben, Brent D., author
Kendall Hunt, 2016
Buku Teks
editor-in-chief V.S. Ramachandran
New York : Academic Press, 1994,
Buku Referensi
editor-in-chief V.S. Ramachandran
New York : Academic Press, 1994,
Buku Referensi