Mahmodi , A.; Hasanpor Abri , . M.; Vakili , . S.; SamKhaniani, E.; Moradi Vajargah, . G. . The Effectiveness of Cognitive Behavioral Therapy on Distress Tolerance and Psychological Hardiness in Adolescents Experiencing Parental Bereavement. KMANCPN 2026, 4, 1-10.