| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Barron's GMAT | 978-1-4380-0231-6 | 2014 | Bobby Umar |
| Barron's GMAT with CD-ROM, 2nd Edition | 978-1-4380-7639-3 | 2017 | Bobby Umar M.B.A. |
| Barron's GMAT with CD-ROM | 978-1-4380-7334-7 | 2014 | Bobby Umar |
| Barron's GMAT with Online Test | 978-1-4380-0798-4 | 2017 | Bobby Umar M.B.A. |
| Pass Key to the GMAT | 978-1-4380-0802-8 | 2017 | " |
| Pass Key to the GMAT | 978-1-4380-0248-4 | 2014 | Bobby Umar MBA |