SWASTIKA, HARDES. KRITERIA KEPOSITIFAN SISTEM DESKRIPTOR LINIER KONTINU. Jurnal Matematika UNAND, [S. l.], v. 8, n. 2, p. 195–200, 2019. DOI: 10.25077/jmu.8.2.195-200.2019. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/524. Acesso em: 2 nov. 2026.