Sriprasert, Piangpis, Pitchyut Penmas, Sirinan Pantaruk, and Thitima Rattnapong. 2020. “ Nakhon Si Thammarat”. Trends of Humanities and Social Sciences Research 8 (1):259-77. https://so03.tci-thaijo.org/index.php/Humanties-up/article/view/219054.