Nurmiati, Nurmiati, and Winda Hartati. 2017. “Pengaruh Metode Pembelajaran Cooperative Learning Tipe Group Investigation Terhadap Hasil Belajar Peserta Didik SMP Negeri 1 Tinambung”. SAINTIFIK 3 (2), 117-27. https://doi.org/10.31605/saintifik.v3i2.151.