Kengpol, Athakorn, Thanyathip Pichitkarnkar, and Kalle Elfvengren. 2021. “A Decision Support System for Consumer Behavior of Chinese In-Bound Tourists on Functional Beverage: An Empirical Study During COVID-19 With Thailand Sandbox”. Applied Science and Engineering Progress 15 (1). https://doi.org/10.14416/j.asep.2021.09.001.