IWONA BAK, MAGDALENA ZIOLO, KATARZYNA CHEBA, ANNA SPOZ. Column Equation Solving Problems in Middle School Exam Paper. CEMJP, [S. l.], v. 23, n. 3, p. 1–12, 2015. Disponível em: http://journals.kozminski.cem-j.org/index.php/pl_cemj/article/view/352. Acesso em: 23 nov. 2024.