Sriwahyuni, E., Wiryokusumo, I. and Karyono, H. 2020. Keefektifan Model Pembelajaran Problem Based Learning Terhadap Motivasi dan Hasil Belajar. Journal of Education Technology. 4, 1 (Mar. 2020), 80–87. DOI:https://doi.org/10.23887/jet.v4i1.24101.