E. Boric, P. Jancic, V. Hus. "THE EFFECT OF EXCURSION ON ELEMENTARY EDUCATION STUDENTS' FACTUAL KNOWLEDGE." 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018 (2018): 849-856. https://doi.org/10.5593/sgemsocial2018/3.5/S13.109