Purba, V.A. et al. 2024. Pengaruh Model Pembelajaran Kooperatif Tipe Group Investigation (Gi) Terhadap Hasil Belajar IPA Siswa Kelas IV SD Negeri 122332 Pematang Siantar. Innovative: Journal Of Social Science Research. 4, 1 (Jan. 2024), 5521–5532. DOI:https://doi.org/10.31004/innovative.v4i1.8502.