Anggun Lilis Hildawati, Yohanes, Sukur. PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS VIII SMP NEGERI 14 MERANGIN. HJPP [Internet]. 2024 Apr. 15 [cited 2026 May 27];1(1):1-7. Available from: https://jurnal.penerbithira.com/index.php/hiradika/article/view/1