Specialized fitness trainer business mix for the elderly in Thailand. Journal of Namibian Studies : History Politics Culture, [S. l.], v. 33, p. 2214–2224, 2023. DOI: 10.59670/jns.v33i.616. Disponível em: https://namibian-studies.com/index.php/JNS/article/view/616. Acesso em: 25 mar. 2025.