WALIYANTI, Ida Kurnia. RANK DARI MATRIKS ATAS RING. Delta-Pi: Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 1, n. 1, 2016. DOI: 10.33387/dpi.v1i1.73. Disponível em: https://ejournal.unkhair.ac.id/index.php/deltapi/article/view/73. Acesso em: 18 jun. 2026.