Capodagli, Bill, 1948-, author
Erlangga, 2002
Buku Teks
Bovee, Courtland L., author
McGraw-Hill, 1992
Buku Teks
Bovee, Courtland L., author
Pearson, 2014
Buku Teks
Bovee, Courtland L., author
McGraw-Hill, 1993
Buku Teks
Jennings, Marianne Moody, author
South-Western, 2009
Buku Teks