Alawneh, Shamekh, and sa’eed Al-Bishawi. 2021. “Feudalism of Lydda and Ramla in the Crusader Period(1099-1187 A.D/492-583 H.)”. Dirasat: Human and Social Sciences 48 (4). http://archives.ju.edu.jo/index.php/hum/article/view/110776.