แก้วเขียว ดร. กิตติ. “Service Marketing Facstors And Service Quality Affecting The Consumer Behavior That Using Fitness In Muang Chumphon District, Chumphon Province”. Journal of KMITL Business school 10, no. 1 (April 16, 2020): 38–47. Accessed April 29, 2024. https://so02.tci-thaijo.org/index.php/fam/article/view/221426.