“PENINGKATAN HASIL PEMECAHAN MASALAH MATEMATIKA MELALUI MODEL PROBLEM BASED LEARNING BERBANTUAN ALAT PERAGA RODA PUTAR PADA SISWA KELAS II SD” (2023), 1(2), pp. 3070–3079. Available at: https://conference.upgris.ac.id/index.php/psnppg/article/view/5470 (Accessed: 11 August 2026).