Ahmed, Nawshirwan Faraj, and Nazakat Husain Hamasaeed. “Marketing Role on Social Networking Sites to Increase Sales ”. Halabja University Journal 5, no. 3 (September 30, 2020): 398–416. Accessed May 28, 2022. https://huj.uoh.edu.iq/index.php/HUJ/article/view/huj-10335.