Yuniati, V. E. “Peningkatan Hasil Belajar IPA Melalui Model Problem Based Learning (PBL) Pada Peserta Didik Kelas VI SDN Ngrawoh Kecamatan Kradenan Kabupaten Blora”. Educatif Journal of Education Research, Vol. 3, no. 2, Dec. 2020, pp. 31-39, doi:10.36654/educatif.v3i2.45.