Kotrunada, Elisa, dan Haerudin Haerudin. “PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SMP”. Prosiding Sesiomadika 2, no. 1d (Desember 12, 2019). Diakses Desember 5, 2025. https://journal.unsika.ac.id/index.php/sesiomadika/article/view/2592.