| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The MLM Binary Plan | 978-1-929746-01-9 (1-929746-01-6) | 1999 |
| The MLM Road Map | 978-1-929746-00-2 (1-929746-00-8) | 1999 |
| The Network Marketing Binary On Steroids | 978-1-929746-02-6 (1-929746-02-4) | 2013 |
H.D. · R.D. · R. Duncan · R. H. · Ray D. · Ray Duncan · Ray H.