H.D. · H. Duckworth · Holly A. Duckworth · Holly Alison Duckworth
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Ctrl+Alt+Believe: Reboot Your Association For Success | 978-1-7320198-0-5 (1-7320198-0-0) | 2018 | |
| Sell More, Stress Less: 52 Tips To Become A Mindful Sales Professional | 978-1-7320198-3-6 (1-7320198-3-5) | 2019 | Eric Szymanski |