Masaunjik, Nava, Piyawan Yangkham, Pornwadee Ruksasri, Kotchanipa Wanichkittikul, and Auscharaporn Chalermchit. 2020. “Wellness Tourism Innovation Management on Sustainable in the North Eastern of Thailand”. Journal for Developing the Social and Community 7 (2). Bangkok, Thailand:493-508. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/229593.