Punnatree Suntisupaporn และ Kanokkarn Kaewnuch. (2018) Guidelines based on factors that encourage cultural festival tourism coordinators to accept and adopt marketing competencies. National Institute of Development Administration:ม.ป.ท.Punnatree Suntisupaporn และ Kanokkarn Kaewnuch. 2018. Guidelines based on factors that encourage cultural festival tourism coordinators to accept and adopt marketing competencies. ม.ป.ท.:National Institute of Development Administration;Punnatree Suntisupaporn และ Kanokkarn Kaewnuch. Guidelines based on factors that encourage cultural festival tourism coordinators to accept and adopt marketing competencies. ม.ป.ท.:National Institute of Development Administration, 2018. Print.