Lloyd, Dennis
The idea of law / Dennis Lloyd
Penguin Books, 1976
 Buku Teks
Foster, Dennis L.
Sales and marketing for the travel professional / Dennis L. Foster
Glencoe , 1993
 Buku Teks
Foster, Dennis L.
Sales and marketing for the travel professional / Dennis L. Foster
Glencoe, 1993
 Buku Teks
Rose, Dennis J
Lewis' Australian bankruptcy law/Dennis J. Rose
The Law Book Company Limited, 1967
 Buku Teks
Readings in the regulation of business / edited, Sidney M. Blumner, Dennis L. Hefner
International Textbook Company, 1968
 Buku Teks