Ulfia Violina Shellby Agustin, Firosalia Kristin. Efektifitas Model Pembelajaran Problem Based Learning dan Discovery Learning Terhadap kemampuan Berpikir Kritis Siswa kelas 6 Muatan Pelajaran IPS. J. Educ. Res. [Internet]. 2023 Oct. 29 [cited 2025 Jul. 31];4(4):1716-22. Available from: https://jer.or.id/index.php/jer/article/view/489