Validitas Media Pembelajaran PowerPoint Interaktif Berbasis Problem Based Learning (PBL) pada Materi Peluang SMP. jiip [Internet]. 2025Jul.20 [cited 2026Mar.17];8(7):8734-43. Available from: https://www.jiip.stkipyapisdompu.ac.id/jiip/index.php/JIIP/article/view/8468