Lalitsasivimol, Woraluck, and Nukool Chinfuk. “Factor Analysis of Competitive Advantage of Small and Medium Enterprises in Songkhla”. Economics and Business Administration Journal Thaksin University 12, no. 2 (December 8, 2020): 83–96. Accessed May 3, 2024. https://so01.tci-thaijo.org/index.php/ecbatsu/article/view/238575.