| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Definitive Guide to Zend Enterprise | 978-1-4302-1037-5 (1-4302-1037-0) | 2009 |
| Zend Framework | 978-1-4302-2883-7 (1-4302-2883-0) | 2010 |
| Zend PHP Certification Study Guide | 978-0-672-32709-4 (0-672-32709-0) | 2004 |