Muhajir, Siti Nurdianti. “WHAT ARE STUDENTS’ LEVELS OF COMMUNICATION AND COLLABORATION SKILLS THROUGH PROBLEM-SOLVING LEARNING?”. Journal of Teaching and Learning Physics 8, no. 2 (August 31, 2023): 71–80. Accessed July 5, 2026. http://journal.uinsgd.ac.id/index.php/jtlp/article/view/24431.