| title | ISBN-13 | year of publication |
|---|---|---|
| Fifteen Managing Tools - A Manual for Trainers - Volume 2 | 978-1-59754-042-1 | 2005 |
| Fifteen Managing Tools: A Supporting Manual For Trainers | 978-1-59754-029-2 | 2005 |
| Jesus loves you. I don´t | 978-1-59754-077-3 | 2005 |
| Nueve habilidades directivas. Manual de soporte para profesionales | 978-1-59754-008-7 | 2004 |
(D-R) · D. Roman · J.D. · J R · J. Román · Juan De Burgos Roman