user22, user2, AND 		Mohammed, a. M. Dr. Qahtan.
" Roads and Commercial Corridors and their Social and Economic Impact in the Origin of Islam (The Arabian Peninsula is a Model)" <em>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</em> [Online], Volume 23 Number 6 (3 April 2019)