คงโฉลง สมาพร, and หิรัญญสมบูรณ์ กตัญญู. 2019. “SERVICE QUALITY AND SERVICE MARKETING MIX IN USING HEMODIALYSIS IN GOVERNMENT HOSPITAL, CENTRAL REGION”. Journal of KMITL Business School 9 (1):1-17. https://so02.tci-thaijo.org/index.php/fam/article/view/214986.