Tongnopkun, Paramee, and Vichit U-on. “Causal Factors that Influence Customer Loyalty for Hotel Industry: The Mediating Role of Relationship Marketing”. Rajapark Journal 18, no. 57 (April 30, 2024): 37–52. accessed September 29, 2026. https://so05.tci-thaijo.org/index.php/RJPJ/article/view/270174.