Ilwandri Ilwandri, Abdul Rahman, Tomi Apra Santosa, Zulkifli Zulkifli, Yayat Suharyat, and Suhaimi Suhaimi. “The Effect of Problem Based Learning-STEM on Students’ 21st Century Skills in Indonesia: A Meta-Analysis”. LITERACY : International Scientific Journals of Social, Education, Humanities 2, no. 1 (April 22, 2023): 151–162. Accessed November 22, 2024. https://jurnal-stiepari.ac.id/index.php/LITERACY/article/view/550.