HUS, Vlasta, 2009, The integration of the subject environmental studies with other subjects : the teachers’ views. Challenges of science, mathematics and technology teacher education in Slovenia [na spletu]. 2009. Vol. 14, p. 24–33. [Dostopano 23 april 2025]. Pridobljeno s: https://dk.um.si/IzpisGradiva.php?lang=slv&id=69298