Hamad, M. and Kharanbeh, S. (2019) “Intellectual Life and Its Effects on Construction Renaissance in Egypt during the Periods of the Two Caliphs Al-Ä€mir Bi-Aḥkām Allah and Al-Ḥāfiẓ Li-Dīnillāh (1101-1149 AD)”, The International Journal of Humanities & Social Studies, 7(2). doi: 10.24940/theijhss/2019/v7/i2/HS1902-027.