BALAĆ, Sanja; MILEUSNIĆ, Marija. Achievements of elementary school students on a knowledge test about types and properties of materials. Norma, [S. l.], v. 29, n. 2, p. 113–127, 2025. DOI: 10.5937/norma29-56236. Dostupno na: https://asistent.ceon.rs/index.php/norma/article/view/56236. Pristupljeno: 12 jul. 2026.