Pongchanun Luangpaiboon, Nopdanai Choosakul, and Tankawee Boonpeng. “Integrated Optimization Strategies for Enhanced Coffee Retail Store Efficiency with DEA Variants, Taguchi Signal to Noise, and Randomized Block Design”. Science & Technology Asia 29, no. 2 (June 25, 2024): 1–18. accessed December 10, 2025. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/254614.