Dultadej Sanvises และ Weerapan Chauyprasit;Rungroj Chaiyasuthi;Thanakrit Umanunt. (2023) Guidelines for Business Operation for Increasing the Competitive Advantage in Aviation and Tourism Industry after COVID-19 Pandemic in Thailand. <i>Interdisciplinary Academic and Research Journal</i>, <i>3</i>(3), 767-778.Dultadej Sanvises และ Weerapan Chauyprasit;Rungroj Chaiyasuthi;Thanakrit Umanunt. "Guidelines for Business Operation for Increasing the Competitive Advantage in Aviation and Tourism Industry after COVID-19 Pandemic in Thailand". Interdisciplinary Academic and Research Journal 3 (2023):767-778.Dultadej Sanvises และ Weerapan Chauyprasit;Rungroj Chaiyasuthi;Thanakrit Umanunt. Guidelines for Business Operation for Increasing the Competitive Advantage in Aviation and Tourism Industry after COVID-19 Pandemic in Thailand. DR.KEN Institute of Academic Development and Promotion.:ม.ป.ท. 2023.