Sitompul W, Huda MK. Perbandingan Hasil Belajar Siswa Dengan Menggunakan Model Pembelajaran Example Non Example dan Picture And Picture Pada Materi Sistem Pernapasan Di Kelas VIII SMP Negeri 2 Dolok Panribuan: Comparison of Student Learning Outcomes Using the Learning Model Example Non Example and Picture And Picture on Material System Breathing in Class VIII SMP Negeri 2 Dolok Panribuan. JMO [Internet]. 2021 Apr. 30 [cited 2024 Jul. 3];3(1):12-9. Available from: https://jurnal.usi.ac.id/index.php/metabio/article/view/27