HARAHAP, R. EFEKTIVITAS MODEL PEMBELAJARAN KOLABORATIF TIPE BUZZ GROUP TERHADAP KEMAMPUAN PENALARAN MATEMATIS SISWA KELAS XI DI MAN 1 TAKENGON. Jurnal As-Salam, [S. l.], v. 1, n. 3, p. 30–40, 2017. Disponível em: https://jurnal-assalam.org/index.php/JAS/article/view/16. Acesso em: 26 sep. 2025.