Source: http://e-biblio.univ-mosta.dz/bitstream/handle/123456789/16645/Les%20difficult%C3%A9s%20d%E2%80%99apprentissage%20de%20la%20langue%20fran%C3%A7aise%20dans%20la%20ville%20Mostaganem%20cem%20djebli%20mohamed%28DJAD.pdf