Omrani, Seyed Amir, et al. “The Effectiveness of Emotionally Focused Therapy on Mental Toughness and Sleep Quality Among People With a History of Hospitalization Because of Coronavirus”. Applied Family Therapy Journal (AFTJ) , vol. 2, no. 5, Dec. 2021, pp. 215-28, https://journals.kmanpub.com/index.php/aftj/article/view/849.