Lailaturrahmah, E., M. Tahir, and A. N. K. Rosyidah. “PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP RETENSI DAN KEMAMPUAN BERPIKIR KRITIS IPA PESERTA DIDIK SD”. Jurnal Ilmiah PENDAS: Primary Educational Journal, Vol. 1, no. 1, June 2020, pp. 1-11, doi:10.29303/pendas.v1i1.49.