| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2002 | 978-0-9543335-0-8 | Hugh George Griffin | Spain: Independent Holiday Guide - The Do-it-yourself Way to Book Your Own Travel and Accommodation and Save Money |
| 2009 | 978-0-9543335-1-5 | Hany A El-Shemy | Plant Genomics |
| 2019 | 978-0-9543335-3-9 | Hugh George Griffin | Ceuta Mini Guide |