by Karen Cummings... [et.al.]
John Wiley & Sons, 2004
Buku Teks
Kirkpatrick, Larry D.
Thomson, Brooks, 2007
Buku Teks
Kirkpatrick, Larry D.
Brooks/Cole Cengage Learning, 2010
Buku Teks
Avison, John
T. Nelson Australia [distributor , 1989
Buku Teks
Jewett, John W.
Harcourt College Publisher, 2001
Buku Teks