Natalia, Tri. 2024. “Comparison of Student’s Learning Outcomes in Mathematics Subjects Using STAD Type Cooperatives With Peer Tutors in Grade X of SMA PGRI Betung Kabupaten Banyuasin”. PPSDP International Journal of Education 3 (1):103-11. https://doi.org/10.59175/pijed.v3i1.198.