Elisa Ermawati, et al. “PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA PADA MATA PELAJARAN IPA”. JPG: Jurnal Pendidikan Guru, vol. 5, no. 2, Mar. 2024, pp. 153-60, https://ejournal.uika-bogor.ac.id/index.php/jpg/article/view/15005.