GENÇ, Murat, Tülin Genç, Mustafa Ergenç, and Neslihan ERKUZ. “Environmental Problem Perception of 6th Grade Students”. World Journal of Environmental Research 6, no. 1 (July 23, 2016): 25–35. Accessed November 23, 2024. https://un-pub.eu/ojs/index.php/wjer/article/view/139.