SERAN, K. A.; SUJADI, A.; TAUFIQ, I. Pengaruh Model Pembelajaran Kooperatif Tipe Group Investigation (GI) Terhadap Hasil Belajar Matematika Siswa SMP. Union : Jurnal Ilmiah Pendidikan Matematika, [S. l.], v. 8, n. 1, p. 33–40, 2020. DOI: 10.30738/union.v8i1.5069. Disponível em: https://jurnal.ustjogja.ac.id/index.php/union/article/view/5069. Acesso em: 6 oct. 2022.