Putra, D.A., Meirza Nanda Faradita and Dewi Masyita Faradillah 2023. Problem-Based Learning (PBL) Instructional Materials for Enhancing Mathematics Learning Outcomes of Elementary School Students. Education and Human Development Journal. 8, 2 (Sep. 2023), 1–9. DOI:https://doi.org/10.33086/ehdj.v8i2.5018.