Taslima, Taslima. 2022. “Improving Students’ Learning Outcomes On Polynomial Materials In Class XI MIPA 2 MAN Kota Singkawang Using The Group Investigation Model”. PINUS: Jurnal Penelitian Inovasi Pembelajaran 8 (1), 31 - 42. https://doi.org/10.29407/pn.v8i1.17922.