Klunklin , A., Sawasdisingha, P., Juntasopeepun, P., Vichittragoonthavorn, S., Setteekul, , S. and Charoenpakdee , P. (2021) “THAI LANNA SPA ACCREDITATION CRITERIA DEVELOPMENT FOR WELLNESS TOURISM”, Dusit Thani College Journal, 15(1), pp. 431–453. available at: https://so01.tci-thaijo.org/index.php/journaldtc/article/view/247460 (accessed: 15 September 2026).