Siregar, Adinda Istiqomah, and Fahrur Rozi. “PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA SEKOLAH DASAR”. JURNAL HANDAYANI PGSD FIP UNIMED, vol. 15, no. 1, July 2024, pp. 138-44, doi:10.24114/jh.v15i1.58575.