THE PERSONAL TRAINER BUSINESS MANAGER: THE IMPORTANCE OF KNOWLEDGE AND MULTIDISCIPLINARY INTERDISCIPLINARY FOR A SUCCESSFUL CAREER. FIEP-Bulletinn [Internet]. 11º de março de 2019 [citado 7º de janeiro de 2026];89(1). Disponível em: https://ojs.fiepbulletin.net/fiepbulletin/article/view/6129