HAROUNI, Brahim. "The Use of Ultra for the Safe Passage of the Anglo-American Expeditionary Forces to North Africa in 1942". مجلة العلوم الإنسانية, م 17, عدد 2, ديسمبر، 2006, ص 121-7, https://revue.umc.edu.dz/h/article/view/872.