Taipabu, N. Y. (2022). Pencapaian Hasil Belajar Fisika dan Perilaku Berkarakter Siswa Kelas IX SMPN 1 Atap Oki Baru berbantuan Model Problem Based Instruction (PBI). Al-Alam: Islamic Natural Science Education Journal, 1(1), 33–39. https://doi.org/10.33477/al-alam.v1i1.2631