VIRGINIA POLII; JAMES U. L. MANGOBI; DEREL F. KAUNANG. PERBEDAAN HASIL BELAJAR GEOMETRI SISWA MENGGUNAKAN MODEL KOOPERATIF TIPE GROUP INVESTIGATION BERBANTUAN GEOGEBRA, MODEL KOOPERATIF TIPE GROUP INVESTIGATION, DAN MODEL DIRECT INSTRUCTION. Discovery, [S. l.], v. 7, n. 2, p. 72–75, 2022. DOI: 10.33752/discovery.v7i2.3415. Disponível em: https://ejournal.unhasy.ac.id/index.php/discovery/article/view/3415. Acesso em: 22 apr. 2025.