FITRIA, A. N. .; IRIANTO, A. . Model Problem Based Learning Untuk Meningkatkan Keterampilan Berfikir Kritis Di Sekolah Dasar. Seminar Nasional Hasil Riset dan Pengabdian, Indonesia, v. 4, p. 1006–1011, 2022. Disponível em: https://snhrp.unipasby.ac.id/prosiding/index.php/snhrp/article/view/425. Acesso em: 18 feb. 2025.