Astuti, Desy Eka Widy, Moh. Aniq KHB, and M. Arief Budiman. 2019. “Analisis Keaktifan Belajar Siswa Terhadap Model Pembelajaran Problem Based Learning (PBL) Pada Mata Pelajaran IPA Di Kelas V SD Kanisius Hasanudin Semarang”. PINUS: Jurnal Penelitian Inovasi Pembelajaran 5 (1), 77-83. https://doi.org/10.29407/pn.v5i1.13732.