Hadeel Mowafaaq Mahmood , Ahmed Ouf , Heidishalaby. “URBAN MANAGEMENT OF HISTORICAL CITYCENTERS BETWEEN THE OLD AND THE MODERN(AL-KHULAFAA STREET:( THE MOSQUE OF THE CALIPHS )A CASE STUDY)”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 18, no. 7, Apr. 2021, pp. 200-13, https://archives.palarch.nl/index.php/jae/article/view/7658.