Boukhechba, Hicham. “Investigating Students’ Politeness Strategies in Email Requests: Master Two Students of English at Ziane Achour University Djelfa”. Eddissi Languages Journal 3, no. 1 (June 9, 2024): 15–24. Accessed May 31, 2026. https://journals.univ-msila.dz/index.php/ELJ/article/view/98.