ธรรมพัฒนากูลม., ทวินันท์ก., ประสงค์เ., & ผาสิงห์ฉ. (2019). Customer Satisfaction towards Service in the Tourism Business Case Study: Your Friends Travel Company, Phitsanulok Province. Business Review Journal, 11(1), 163-175. Retrieved from https://www.tci-thaijo.org/index.php/bahcuojs/article/view/198355