Harnita, Rismiyanto and Sumaji 2022. The Effectiveness of Problem-Based Learning Model Towards Students’ Learning Outcomes of Natural Science Class V Elementary School in Gugus Gajah Mada Sub-District Bonang, Demak Regency. Uniglobal Journal of Social Sciences and Humanities. 1, (Sep. 2022), 29–35. DOI:https://doi.org/10.53797/ujssh.v1sp.5.2022.