Joungchaichana, Chouchai. “The Structural of Customer Relationship Management of Electrical Appliance Business in Bangkok and Perimeter”. Journal of Management Science Nakhon Pathom Rajabhat University 9, no. 2 (July 25, 2023): 47–62. accessed September 18, 2026. https://so03.tci-thaijo.org/index.php/JMSNPRU/article/view/265476.