Karatas, Zeynep, and Richard Ernest Tremblay. “Analyzing the Levels of Depressive Symptoms Among Secondary School Students in Canada and Turkey”. Cypriot Journal of Educational Sciences 10, no. 3 (September 15, 2015): 245–256. Accessed February 20, 2026. https://un-pub.eu/ojs/index.php/cjes/article/view/227.