Agnew, Neil McK., author
Prentice-Hall, 1982
Buku Teks
Gravetter, Frederick J., author
Cengage, 2018
Buku Teks
Gravetter, Frederick J., author
CT Cengage Learning, 2016
Buku Teks
Gravetter, Frederick J., author
Wadsworth, 2012
Buku Teks
Lindgran, Henry Clay
John Wiley & Sons, 1966
Buku Teks