Piriyabenjawat , Jutarat. “MARKETING MIX FACTORS THAT AFFECT TOWARDS USING SPA SERVICES OF CUSTOMER IN BANGKOK”. Dusit Thani College Journal 15, no. 2 (August 3, 2021): 98–112. accessed August 27, 2026. https://so01.tci-thaijo.org/index.php/journaldtc/article/view/249336.