Purba, Ernita, and Rudi Munzirwan. “Penerapan Model Pembelajaran Problem Based Learning Terhadap Hasil Belajar Dan Minat Siswa Pada Materi Laju Reaksi Di SMA Katolik Medan XI IPA 4”. Educenter : Jurnal Ilmiah Pendidikan 1, no. 6 (June 25, 2022): 383–388. Accessed December 2, 2024. https://jurnal.arkainstitute.co.id/index.php/educenter/article/view/189.