Dalrymple, Douglas J.
John Wiley & Sons, 1990
Buku Teks
Dalrymple, Douglas J.
John Wiley & Sons, 1995
Buku Teks
Dalrymple, Douglas J.
John Wiley & Sons, 1983
Buku Teks
edited by Philip Kotler, Keith K. Cox
Prentice-Hall, 1984
Buku Teks
Markin, Rom J.
John Wiley & Sons, 1982
Buku Teks