Peningkatan Hasil Belajar Matematika Materi Penjumlahan Kelas II SDN 02 Banjar Sari Melalui Model Problem Based Intruction (PbI) Berbantu Game Math Mahjong. Trigonometri 2024, 1 (2), 11-20. https://doi.org/10.30599/trigonometri.v1i2.3449.