ZUL IKHSAN; SYARIFUDDIN. Analisis Kesalahan Prosedural Siswa pada Operasi Hitung Barisan dan Deret melalui Problem Based Learning. ARMADA : Jurnal Penelitian Multidisiplin, [S. l.], v. 4, n. 6, p. 1846–1855, 2026. DOI: 10.55681/armada.v4i6.2630. Disponível em: https://ejournal.45mataram.ac.id/index.php/armada/article/view/2630. Acesso em: 4 jul. 2026.