Loudon, David L.
Consumer behavior : concepts and applications / David L. Loudon, albert J. Della Bitta
McGraw-Hill, 1988
 Buku Teks
Hill, Charles W.L.
Strategic management : an integrated approach
Houghton Miffiln, 1992
 Buku Teks
Hill, Charles W.L.
Strategic management : an integrated approach
Houghton Miffiln, 2001
 Buku Teks
Hill, Charles W.L.
Strategic management : an integrated approach
Houghton Miffiln, 1998
 Buku Teks
Hill, Charles W.L.
Strategic management : an integrated approach
Houghton Mifflin , 1989
 Buku Teks