Karbalaeipour , H., Benisi, P., Jomehri , F., & Nasrollahi , B. (2023). A Study on the Structural Relationship between Psychological Capital and Mental Toughness: Mediating Role of Ambiguity Tolerance with Happiness. Applied Family Therapy Journal (AFTJ) , 2(1), 220-243. https://doi.org/10.61838/kman.aftj.2.1.12