Anggraini D, Prayekti N, Yusuf FI. EFEKTIVITAS PENGGUNAAN METODE PROBLEM BASED INTRUCTION (PBI) TERHADAP KETUNTASAN HASIL BELAJAR SISWA. TR [Internet]. 2019Jul.29 [cited 2021Dec.6];3(1):35-2. Available from: https://ejournal.unibabwi.ac.id/index.php/transformasi/article/view/397