E. L. · Ester A Leutenberg · Ester R.A. Leutenberg
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Substance Abuse & Recovery Workbook - Self-Assessments, Exercises & Educational Handouts | 978-1-57025-225-9 (1-57025-225-4) | 2008 | John J Liptak · EdD |
| The Communication Skills Workbook - Reproducible Self-Assessments, Exercises & Educational Handouts | 978-1-57025-226-6 (1-57025-226-2) | 2008 | John J Liptak |
| The Conflict Management Skills Workbook - Self-Assessments, Exercises & Educational Handouts | 978-1-57025-239-6 (1-57025-239-4) | 2010 | " |