Evans, James Robert, 1950-, author
South-Western, 2002
Buku Teks
Evans, James Robert, 1950-, author
South Western Cengage Learning, 2011
Buku Teks
Fox, Roy
McGraw-Hill, 1991
Buku Teks
Fandy Tjiptono, author
Andi Offset, 2003
Buku Teks
Mills, Charles A., author
McGraw-Hill, 1989
Buku Teks