Oktaviani, R., Angganing, P. and Riyadi, S. 2021. Peningkatan Motivasi dan Hasil Belajar Siswa Melalui Model Problem Based Learning. Educatif Journal of Education Research. 4, 3 (Jul. 2021), 31-38. DOI:https://doi.org/10.36654/educatif.v4i3.112.