Aljedani, Salih Maddah, Anwar Mahmoud Zanaty, and Saad Saeed Alqarni. “The Pearl Stone in the Arab Scientific Heritage from the Umayyad Era to the End of the Mamluk Era (41- 923 AH/ 662-1517AD): A Cultural Historical Study”. International Journal of Innovative Research and Scientific Studies 9, no. 5 (May 25, 2026): 212–228. Accessed May 25, 2026. https://www.ijirss.com/index.php/ijirss/article/view/11691.