Suttipong Testom และ Chamnian Polhan. (2023) Guidelines for the Development of Democratic Citizenship Characteristics of Students under Khon Kaen Primary Educational Service Area Office 2. <i>Interdisciplinary Academic and Research Journal</i>, <i>3</i>(2), 851-866.Suttipong Testom และ Chamnian Polhan. "Guidelines for the Development of Democratic Citizenship Characteristics of Students under Khon Kaen Primary Educational Service Area Office 2". Interdisciplinary Academic and Research Journal 3 (2023):851-866.Suttipong Testom และ Chamnian Polhan. Guidelines for the Development of Democratic Citizenship Characteristics of Students under Khon Kaen Primary Educational Service Area Office 2. DR.KEN Institute of Academic Development and Promotion.:ม.ป.ท. 2023.