- Author: Phillip Heasley Stacey Johnson Omar Montoya Kacey Ross
- Language: English
- Year: 2020
- Author: Omar Mohout
- Language: English
- Year: 2015
- Author: Omar W. Nasim
- Language: English
- Year: 2014
- Author: Omar AlShehabi, Adam Hanieh, Abdulhadi Khalaf
- Language: English
- Year: 2013
- Author: Rafael Hermoso, Rita Rivera, Allan (Bud) Seling, Omar Minaya
- Language: English
- Year: 2013
- Author: Hatim A. Omar, Donald E. Greydanus
- Language: English
- Year: 2009
- Author: Omar Masood, Shahid M. K. Ghauri
- Language: English
- Year: 2015