Dinda Sulistia, and Arrini Shabrina Anshor. “The Influence of Problem Based Learning (PBL) Model on Student Learning Outcomes in Mathematics Learning Materials Building Cube Space and Beam in Class V SDN 060907 Medan Maimun District”. International Journal of Educational Research Excellence (IJERE), vol. 2, no. 2, July 2023, pp. 173-8, doi:10.55299/ijere.v2i2.457.