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 2023, 5, 213-229.