KEEFEKTIFAN MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION PADA MATERI GEOMETRI BERBANTUANGEOGEBRA DITINJAU DARI KEMAMPUAN REPRESENTASI MATEMATIKA DANSELF-EFFICACY. Prosiding Seminar Nasional Pendidik dan Pengembang Pendidikan Indonesia, [S. l.], v. 1, n. 1, p. 438–446, 2017. Disponível em: https://ejournal.mandalanursa.org/index.php/ProsPen/article/view/360. Acesso em: 10 oct. 2026.