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.