LAKEHAL–AYAT, Karima. IS THE EDUCATIONAL SYSTEM WEAKENING? A COMPARATIVE STUDY OF PROFICIENCY TESTS. Journal of Human Sciences , Constantine, Algeria, v. 19, n. 2, p. 77–93, 2008. Disponível em: http://conferences.umc.edu.dz/h/article/view/774. Acesso em: 11 jan. 2026.