Bekir YILDIRIM, Emine ŞAHİN, and Gizem TABARU, “THE EFFECT OF STEM PRACTICES ON PRE-SERVICE TEACHERS’ BELIEFS ON NATURE OF SCIENCE, THEIR ATTITUDES TOWARDS SCIENTIFIC RESEARCH AND CONSTRUCTIVIST APPROACH”, IJOESS, vol. 8, no. 28, p. LXVI-LXXIX, Aug. 2017.