POPOVIĆ, Emina. An overview of previous research on learning and teaching about mixtures and solutions. Norma, [S. l.], v. 29, n. 2, p. 184–194, 2025. DOI: 10.5937/norma29-55278. Dostupno na: https://asistent.ceon.rs/index.php/norma/article/view/55278. Pristupljeno: 12 jul. 2026.