Wau MP. PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR IPS PADA SISWA KELAS IV SDI BAJAWA KECAMATAN BAJAWA KABUPATEN NGADA. J. Educ. Technol. [Internet]. 2017 Dec. 19 [cited 2024 May 2];1(4):239-45. Available from: https://ejournal.undiksha.ac.id/index.php/JET/article/view/12860