| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| I Don't Want To Go To The Toilet | 978-0-9790420-3-4 (0-9790420-3-8) | 2011 | |
| Mommy and Daddy Are Always Supposed to Say Yes ... Aren't They? | 978-0-9790420-0-3 (0-9790420-0-3) | 2007 | Ph.D. |
| Why Do I Have To? | 978-0-9790420-1-0 (0-9790420-1-1) | 2009 | |