Siriwat P. The Development of Learning Activities using Constructivism to Promote Creative A Good Citizenship to The Way of Democracy in Social Studies Subject of Mathayomsuksa 3 Students: The Development of Learning Activities using Constructivism to Promote Creative A Good Citizenship to The Way of Democracy in Social Studies Subject of Mathayomsuksa 3 Students. rtnb [internet]. 2023 Aug. 31 [cited 2025 May 29];5(2):213-29. available from: https://so07.tci-thaijo.org/index.php/rtnb/article/view/2900