HAROUNI, Brahim. The Use of Ultra for the Safe Passage of the Anglo-American Expeditionary Forces to North Africa in 1942. مجلة العلوم الإنسانية, Constantine, Algeria, v. 17, n. 2, p. 121–127, 2006. Disponível em: http://conferences.umc.edu.dz/h/article/view/872. Acesso em: 22 2025.