Saleha, Saleha, and Elihami Elihami. “The Effect of Problem-Based Learning on Fourth-Grade Elementary School Students’ Numeracy Skills”. Mahaguru: Jurnal Pendidikan Guru Sekolah Dasar  5, no. 1 (March 23, 2024): 18–24. Accessed September 5, 2026. https://jurnal2.unimen.cloud/index.php/mahaguru/article/view/398.