Upaya Meningkatkan Hasil Belajar Matematika Melalui Penerapan Model Pembelajaran Group Investigation. JURNAL PENA EDUKASI, [S. l.], v. 7, n. 2, p. 65–74, 2020. DOI: 10.54314/jpe.v7i2.184. Disponível em: https://jurnal.goretanpena.com/index.php/JPE/article/view/184.. Acesso em: 26 sep. 2026.