Yuliani, T., Rahma Pratiwi, E. Y., & Susilo, C. Z. (2022). The Influence Of Problem-Based Learning Models On Mathematics Learning Outcomes For Grade IV SDN Kedungotok. IJPSE Indonesian Journal of Primary Science Education, 3(1), 167–173. https://doi.org/10.33752/ijpse.v3i1.2813