Messaouda MEKHILEF. A Mask and Communication: "impossible alliance" or "promise of evolution" Didactico-pedagogical approaches to beeffective: Teachingwith or without a mask, two different practices. RDRH [Internet]. 2026 Nov. 1 [cited 2026 Nov. 2];17(02):878-9. Available from: https://rdrh.univ-setif2.dz/index.php/rdrh/article/view/472