Evadio Filho. “Factors That Symbolize the Service Quality in Fitness Centers: A Study Under the Perspective of Systematic Review and Content Analysis”. Global Journal of Management and Business Research 20, no. G3 (March 15, 2020): 7–21. Accessed May 4, 2024. https://journalofbusiness.org/index.php/GJMBR/article/view/3148.