Pengju Li. “A Study on the Psychological and Social Factors Related to Exercise Addiction Among Middle-Aged and Elderly People”. Revista de Psicología del Deporte (Journal of Sport Psychology) 31, no. 2 (September 15, 2022): 93–102. Accessed December 2, 2024. https://rpd-online.com/index.php/rpd/article/view/713.