Afifah, N., & Afandi, R. (2020). The Effect of Group Investigation Learning Model on Social Studies Learning Outcomes of Class IV SDN SUKO 1 SIDOARJO: Pengaruh Model Pembelajaran Group Investigation Terhadap Hasil Belajar IPS Kelas IV SDN SUKO 1 SIDOARJO. Indonesian Journal of Education Methods Development, 10, 10.21070/ijemd.v10i.564. https://doi.org/10.21070/ijemd.v10i.564