DJOUBEROU , J.-L.; SAIDOU , V.; FOUDA OMGBA NSI , A. L. EFFECTIVENESS OF MARKETING-MIX STRATEGIES ON CUSTOMERS OF FITNESS ESTABLISHMENTS. PILOT AND PRELIMINARY STUDY IN THE CITY OF YAOUNDE (CAMEROON). Revue Internationale des Sciences de Gestion, [S. l.], v. 5, n. 2, 2022. Disponível em: https://revue-isg.com/index.php/home/article/view/913. Acesso em: 3 jul. 2024.