Cut Meutia. “Peningkatan Hasil Belajar Dan Kemampuan Berpikir Kritis Siswa Dalam Materi Perhitungan Kimia Melalui Model Pembelajaran Problem Based Learning”. Jurnal Kinerja Kependidikan (JKK): Facilities of Educator Career and Educational Scientific Information, vol. 3, no. 1, July 2021, pp. 39-60, https://journalserambi.org/index.php/jkk/article/view/11.