Navabi, Monirolsadat, Kourosh Goodarzi, Mehdi Roozbahani, and Davood Kordestani. 2022. “Effectiveness of Problem Solving Skills Training on Psychological Hardiness and Cognitive Emotion Regulation Strategies in High School Students”. Iranian Journal of Educational Sociology 2 (4): 158-65. https://qijes.com/index.php/ijes/article/view/873.