Saeidi, Z., & Asgharnejad, A. A. (2018). The Effectiveness of Positivism Group Psychotherapy Based on Frisch’s Theory in Promoting Happiness and Life Satisfaction of Breast Cancer Patients. American Scientific Research Journal for Engineering, Technology, and Sciences, 48(1), 53–63. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/4445