Astria Ayu Ramadianti. “Efektivitas Penerapan Model Pembelajaran Project Based Learning Terhadap Kemampuan Aritmatika Siswa Sekolah Dasar”. Multiverse: Open Multidisciplinary Journal 4, no. 1 (April 30, 2025): 22–27. Accessed March 11, 2026. https://jurnal.medanresourcecenter.org/index.php/MULTIVERSE/article/view/1803.