Wahyuni, Ni L.P.W, I M.C. Wibawa, and N.T Renda. 2018. “Pengaruh Model Pembelajaran Kooperatif Tipe Group Investigation Berbantuan Asesmen Kinerja Terhadap Keterampilan Proses Sains”. International Journal of Elementary Education 2 (3):202-10. https://doi.org/10.23887/ijee.v2i3.15959.