Mizher Al Zahrani, Dr. Yahya. “ The Effectiveness of the Blackboard Elements During Corona Pandemic in Light of the Quality Assurance and Accreditation Standards from the Viewpoint of Faculty Members: A Case Study of the Mathematics Department at Umm Al-Qura University”. The Arab Journal For Quality Assurance in Higher Education 14, no. 49 (November 27, 2021). Accessed December 19, 2024. https://journals.ust.edu/index.php/AJQAHE/article/view/1837.