salwi, saiful, Wahid, A. and N, J. 2025. Effectiveness Of Problem Solving Based Learning Model In The 21st Century In Improving Creativity and Science Learning Outcomes Of Grade IV Students. ALENA : Journal of Elementary Education. 3, 2 (Jul. 2025), 245–256. DOI:https://doi.org/10.59638/jee.v3i2.414.