M. Abolfazli, “The Effectiveness of Positive Thinking Training in Physical Education Classes on Psychological Flexibility and Social Adjustment among Female Secondary School Students in Neyshabur”, ECS, vol. 7, no. 4, pp. 1–11, Jul. 2026, Accessed: Oct. 01, 2026. [Online]. Available: https://journalecs.com/index.php/ecs/article/view/361