Wissam Aziz Shenawa Al-Saadi, and Riad Hamza Al-Bakri. 2016. “Suitability for Use and Their Role in Achieving Customer Satisfaction ”. Journal of Madenat Alelem University College 8 (2), 113-29. http://116.203.176.164/index.php/JMAUC/article/view/117.