قرحيلي ن. . “The Human and Natural Factors Causing Economic and Social Crises in Andalusia 94-422 AH / 712-1031 CE”. Latakia University Journal - Arts and Humanities Sciences Series, vol. 42, no. 4, Sept. 2020, https://journal.latakia-univ.edu.sy/index.php/humlitr/article/view/9900.