Tiauw, Victoria, and Yao Tung Khoe. “THE EFFECT OF TEACHER LEADERSHIP AND STUDENT MOTIVATION THROUGH COLLABORATIVE LEARNING ON STUDENTS’ COGNITIVE ABILITIES AT XYZ PRIMARY SCHOOL”. JOHME: Journal of Holistic Mathematics Education 6, no. 2 (December 5, 2022): 122–137. Accessed December 10, 2025. https://ojs.uph.edu/index.php/JOHME/article/view/5834.