Situmorang E, . J. PENGARUH MODEL PEMBELAJARAN STUDENT FACILITATOR AND EXPLAINING TERHADAP HASIL BELAJAR EKONOMI SISWA SMA NEGERI 4 MEDAN. JPBP [Internet]. 2017 Apr. 19 [cited 2026 Feb. 14];22(1):23-9. Available from: https://jurnal.unimed.ac.id/2012/index.php/penelitian/article/view/6155