Darmawan, Y. and Airlanda, G.S. 2021. Meta Analisis Model Pembelajaran Problem Based Learning terhadap Hasil Belajar Kognitif Di Sekolah Dasar. Jurnal Bidang Pendidikan Dasar. 5, 1 (Jan. 2021), 42–52. DOI:https://doi.org/10.21067/jbpd.v5i1.5386.