Ali Ahmed Elsayed. "Historical Repercussion for the Saladin Recovery of Ayla from the Crusaders in 1170 AD \ 566AH and 1183 AD \ 579AH", The Scientific Journal of the Faculty of Tourism and Hotels, Alexandria University, 18.1, 1, 2021, 41-66. doi: 10.21608/thalexu.2021.211870