T. Yodudom, P. Khiawnoi, T. Rattanapong, K. Boonrod, and N. Imjai, “THE SUSTAINABLE TOURISM DEVELOPMENT CASE STUDY OF TOURISM DESTINATIONS IN PROMKIRI, NOBPTUM AND SICHON, NAKHON SI THAMMARAT PROVINCE”, JSBA, vol. 6, no. 3, pp. 209–220, Mar. 2021.