UPAYA MENINGKATKAN MOTIVASI BELAJAR MATEMATIKA SISWA KELAS XII SMA YPPK TERUNA BAKTI MELALUI PENERAPAN MODEL PEMBELAJARAN COOPERATIVE LEARNING. Sindoro. 2025;18(2):3791-3800. Accessed October 2, 2026. https://cibjournal.com/index.php/sindoro/article/view/3794