PENGARUH MODEL PEMBELAJARAN GROUP INVESTIGATION TERHADAP KEMAMPUAN BERPIKIR ANALITIS DAN PERILAKU ASERTIF SISWA SMP NEGERI 35 SURABAYA. Sindoro: Cendikia Pendidikan, [S. l.], v. 18, n. 9, 2026. Disponível em: https://journal.cib.institute/index.php/sindoro/article/view/3649. Acesso em: 21 oct. 2026.