Hamidi H, Kamyabi M, Manzari Tavakkoli A, Zeinaddini Meymand Z. Investigating the Effectiveness of Choice Theory Training on Time Perspective and Psychological Capital (Resilience, Self-Efficacy, Hope, and Optimism) in Male High School Students in South Khorasan Province. ECS. 2025;6(2):1-9. Accessed August 15, 2025. https://www.journalecs.com/index.php/ecs/article/view/223