Brockhampton Press, 1996
Buku Referensi
Penguin, 1998
Buku Referensi
Alexander, Linda Lewis, author
Jones & Bartlett Learning, 2014
Buku Teks
Carlson, Karen J., author
Harvard Universiy press , 1996
Buku Teks
Saltman, Deborah, author
Harcourt Brace Jovanovich, 1991
Buku Teks