Mohammadpour, Mansoureh, and Mohammadreza Esmaeilnia Ghara. “The Effectiveness of Positive Thinking Skills on Guilt Feelings, Rumination, and Hope for Life in the Elderly”. Mental Health and Lifestyle Journal, July 2026, pp. 1-12, https://mhljournal.com/index.php/mhlj/article/view/210.