Mohammed Mashary Alnaim. “The Concept of Access and the Mechanisms of the Threshold Space in Arab Traditional Built Environment: The Case of Najd, Saudi Arabia”. Global Journal of Science Frontier Research 20, no. A9 (July 15, 2020): 1–18. Accessed May 2, 2024. https://journalofscience.org/index.php/GJSFR/article/view/2760.