Mash, Eric J., author
Thomson Wadsworth, 2005
Buku Teks
editor by Benjamin B. Wolman
New York : Van Nostrand Reinhold Company, 1977,
Buku Referensi
Nevid, Jeffrey S., author
Erlangga, 2005
Multimedia
Nevid, Jeffrey S., author
Erlangga, 2005
Multimedia
Mash, Eric J., author
Wadsworth, 1999
Buku Teks