Sripol P, Phakdeeying R, Kowithayakorn V. Marketing Strategy of Health-Promotional Tourism Business in the Northeast of Thailand. dhammathas [internet]. 2019 Mar. 30 [cited 2026 Jan. 6];19(1):123-32. available from: https://so06.tci-thaijo.org/index.php/dhammathas/article/view/111170