Gunadi, F., Nurafifah, L., Khofifah, K. and Akbar, A. M. (2023) “INQUIRY LEARNING WITH POLYA PROPLEM SOLVING TO IMPROVE STUDENT LEARNING OUTCOMES AND ENGAGEMENT”, Jurnal PTK dan Pendidikan, 9(1), pp. 75–85. doi: 10.18592/ptk.v9i1.9382.