Syaputra, Irvan Abid, dkk. “Model Pembelajaran Kooperatif Tipe Group Investigation (GI) Dalam Mata Pelajaran Matematika Di Sekolah Dasar”. J-SES : Journal of Science, Education and Studies, vol. 2, no. 2, Agustus 2023, https://journal.um-surabaya.ac.id/J-SES/article/view/19265.