Gumjudpai, Thunyavadee, and Tipparat Sittiwong. 2020. “THE STUDY OF REPRESENTATION OF THAI NATIONAL LOYALTY OF THE CHAN PALACE HISTORICAL CENTER: A STUDY FOR PROMOTION BY SELF-DIRECTED LEARNING”. JOURNAL OF EDUCATION NARESUAN UNIVERSITY 22 (2):125-34. https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/229685.