| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Mobilizing Your Enterprise with SAP | 978-1-59229-419-0 (1-59229-419-7) | 2012 | Tzanko Stefanov · Stanley Stadelman |
| SAP Web Client: A Comprehensive Guide for Developers | 978-1-59229-389-6 (1-59229-389-1) | 2011 | Tzanko Stefanov · Armand Sezikeye |