PENGARUH MODEL PROBLEM BASED LEARNING BERBANTUAN EKSPERIMEN SEDERHANA TERHADAP KEMAMPUAN BERPIKIR KRITIS MATA PELAJARAN IPAS KELAS V DI SD NEGERI 1 KALIUNTU. widyajaya [Internet]. 2025 Mar. 1 [cited 2025 Nov. 15];5(1):115-26. Available from: https://journal.mpukuturan.ac.id/index.php/widyajaya/article/view/1318