Kunsaengkaew, Chukkrid, Sutonya Thongrak, and Sirirat Kiatpathomchai. “Factors Affecting the Implementation of RSPO Standard Practices of the Smallholders in Surat Thani Province”. KKU Research Journal (Graduate Studies) Humanities and Social Sciences 8, no. 3 (December 16, 2020): 97–112. accessed September 14, 2026. https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/247816.