Yupong , Churaluk, and Danaipong Chetchotsak. “Strategies to Increase Sales of Vichai Furniture, Khon Kaen Province”. Journal of Modern Learning Development 7, no. 1 (September 23, 2021): 169–186. accessed October 4, 2026. https://so06.tci-thaijo.org/index.php/jomld/article/view/250907.