P. . Thanapotivirat, W. . . Homboonyong, A. . Amornsittinon, R. . Patcharapuwadol, and N. . . Hamloha, “SERVICE QUALITY AND MARKETING FACTORS AFFECTING AFTER EASING OF COVID-19 PROTOCOL”, Journaldtc, vol. 15, no. 2, pp. 68–79, Aug. 2021.