Krathinthong, K. ., and S. . Thammaboosadee. “Customer Analytics of Orchid Pot Business during the First Corona Virus Outbreak Period in Thailand”. KKU Science Journal, vol. 50, no. 1, Nov. 2022, pp. 46-57, https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/250298.