Syaputra, Irvan Abid, Badruli Martati, dan Vitriani Vitriani. 2023. “Model Pembelajaran Kooperatif Tipe Group Investigation (GI) Dalam Mata Pelajaran Matematika Di Sekolah Dasar”. J-SES : Journal of Science, Education and Studies 2 (2). https://journal.um-surabaya.ac.id/J-SES/article/view/19265.