Siregar T. PENGARUH MODEL PROBLEM BASED LEARNING BERBANTUAN LKPD DIGITAL TERHADAP KEMAMPUAN PEMECAHAN ASALAH MATEMATIS SISWA PADA MATERI STATISTIKA. JPE [Internet]. 2023Mar.20 [cited 2025Mar.12];3(1):52-86. Available from: https://ojs.staisdharma.ac.id/index.php/jpe/article/view/286