Durongdumrongchai T, Nitiwattana C, Thongchum M. SERVICE QUALITY INFLUENCING ON LOYALTY IN CONTEXT OF FITNESS CENTER: A CONCEPTUAL MODEL AND PROPOSITIONS. JHS.TRU [internet]. 2019 Sep. 1 [cited 2026 Sep. 22];13(3):108-19. available from: https://so03.tci-thaijo.org/index.php/trujournal/article/view/214070