Kaewjunant , Saranrat, and Jakrapong Pongpeng. “Factors for Evaluating Building Sustainability of Contractors Affecting Competitive Advantage”. Engineering and Technology Horizons 37, no. 4 (December 22, 2020): 26–35. Accessed May 9, 2024. https://ph01.tci-thaijo.org/index.php/lej/article/view/243460.