Measurement of Essential Skills in Mathematics: A Comparative Analysis of SSC (Grade-X) and GCE (O-Level) Exam Papers. Journal of Education and Educational Development, Pakistan, v. 7, n. 1, p. 103–118, 2020. Disponível em: https://journals.iobm.edu.pk/index.php/joeed/article/view/13. Acesso em: 4 apr. 2026.