SIMIĆ, Olivera. Essays on learning and teaching mathematics. Norma, [S. l.], v. 28, n. 1, p. 109–112, 2023. DOI: 10.5937/norma28-41747. Dostupno na: https://asistent.ceon.rs/index.php/norma/article/view/41747. Pristupljeno: 12 jul. 2026.