เพชรคง พุฒิยา, ชูรินทร์ พวงเพ็ญ, and คงรุ่งโชค อรุษ. “The Relationship Between Operating Factors and Expenditure of Manufacturing Business in Small and Medium Enterprises (SMEs) in Surat Thani Province”. Journal of Management Sciences Suratthani Rajabhat University 4, no. 2 (December 29, 2017): 117–142. Accessed April 27, 2024. https://so03.tci-thaijo.org/index.php/msj/article/view/116369.