Griffin, Ricky W., author
South Western Cengage Learning, 2012
Buku Teks
Donnelly, James H., author
McGraw-Hill , 1998
Buku Teks
Allen, Edward, author
John Wiley & Sons, 2011
Buku Teks
ABA Publishing, 2013
Buku Teks
Krinitzsky, Ellis L., author
John Wiley & Sons, 1993
Buku Teks