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. (2020). Indonesian Journal of Education Methods Development, 10, 10.21070/ijemd.v10i.564. https://doi.org/10.21070/ijemd.v10i.564