คงเทียม ก, เอี่ยมละออภักดี ป. Formulation Service Marketing Strategies to Increase Occupancy Rates for VIP Dormitory, Mueang District, Khon Kaen Province. ecbajournal [internet]. 2019 Dec. 19 [cited 2026 Sep. 12];11(2):1-8. available from: https://so01.tci-thaijo.org/index.php/ecbatsu/article/view/186312