Norina Ahmad JAMIL; Irwan IBRAHIM; Afizan AMER. Study on Aging Adult Fitness Center Service Quality: A Conceptual Framework. New Visions in Science and Technology Vol. 4, [S. l.], p. 113–120, 2021. DOI: 10.9734/bpi/nvst/v4/1917C. Disponível em: https://stm.bookpi.org/NVST-V4/article/view/4001. Acesso em: 9 jun. 2026.