Cambridge University Press, 2005
Buku Teks
Gravetter, Frederick J.
CT Cengage Learning, 2016
Buku Teks
Gravetter, Frederick J.
Cengage, 2018
Buku Teks
Gravetter, Frederick J.
Wadsworth, 2012
Buku Teks
Howell, David C.
Thomson/Wadsworth, 2008
Buku Teks