IRWANTO. Implementasi Model Pembelajaran Kooperatif Tipe Investigasi Kelompok dalam Upaya Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa. Progressive of Cognitive and Ability, [S. l.], v. 1, n. 2, p. 221–231, 2022. DOI: 10.56855/jpr.v1i2.76. Disponível em: https://journals.eduped.org/index.php/jpr/article/view/76. Acesso em: 27 jun. 2025.