Alvionita, Rifda Rila, and Lilis Marina Angraini. 2023. “Pengaruh Model Pembelajaran Berbasis Masalah Terhadap Hasil Belajar Matematika Kelas 4 SD : (The Effect of Problem-Based Learning Model on 4th Grade Mathematics Learning Outcomes)”. Journal of Research in Science and Mathematics Education 2 (3):136-46. https://doi.org/10.56855/jrsme.v2i3.614.