Komariah, K., Sofyan, H. and Wagiran, W. (2019) “PROBLEM-BASED LEARNING: THE IMPLEMENTATION AND THE URGENCY FOR IMPROVING LEARNING QUALITY”., Jurnal Kependidikan: Penelitian Inovasi Pembelajaran, 3(2), pp. 207–219. doi: 10.21831/jk.v3i2.20792.