pid type title authors mentors source_title published_date url doi isbn issn eissn biotechri:178 "journal article" "Developing positive attitude towards science and mathematics through motivational classroom experiences" "Rukavina, Sanja; Zuvic-Butorac, Marta; Ledic, Jasminka; Milotic, Branka; Jurdana-Sepic, Rajka"