Daoruang, R., Pithukchuchok, M., Chuamwarasart, N., & Chombunchoo, N. (2026). Key Success Factors Influencing the Competitive Advantage of Small and Medium Enterprises in Bangkok. Research and Development Journal, Loei Rajabhat University, 21(75), 60–72. https://doi.org/10.14456/lruj.2026.5