Hanafiani, Lia Gatra, Anton Nasrullah, and Amat Hidayat. “PEER TUTORING WITH XCHART UTILIZATION: ENHANCING STUDENTS’ PROBLEM-SOLVING SKILLS AND SELF-DIRECTED LEARNING”. Indonesian Journal of Teaching and Learning 2, no. 3 (August 30, 2023): 429–444. Accessed September 26, 2025. https://journals.eduped.org/index.php/intel/article/view/549.