SARI, Nina Indra; FIRDAUS, Fery Muhammad; JABAR, Cepi Safruddin Abd. Peningkatan Hasil Belajar Matematika Kelas VI Menggunakan Model Problem Based Learning (PBL) Pada Materi Bangun Ruang. Jurnal Ragam Pengabdian, [S. l.], v. 3, n. 2, p. 5633–5642, 2026. DOI: 10.62710/gtd7hf42. Disponível em: https://teewanjournal.com/index.php/juragan/article/view/3614.. Acesso em: 29 sep. 2026.