EXPLORE THE BRIEFCASE - LEARNING ABOUT RAW MATERIALS THROUGH NON-CONVENTIONAL TEACHING TOOLS. Geologica Macedonica, [S. l.], v. 33, n. 2, p. 159–166, 2019. Disponível em: https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/3329. Acesso em: 3 may. 2026.