Kayhan BOZGÜN, Şafak ULUÇINAR SAĞIR. INVESTIGATION OF KNOWLEDGE LEVELS ABOUT GLOBAL WARMING AND GREENHOUSE EFFECT OF PRESERVICE TEACHERS. IJOESS [Internet]. 2017 Dec. 1 [cited 2025 May 17];8(30):1777-93. Available from: https://rrpubs.com/index.php/ijoess/article/view/1015