Sari WR. BATAS ATAS R(C4;Wm) UNTUK m 6. Jurnal Matematika UNAND [Internet]. 2012 Oct. 30 [cited 2026 Nov. 4];1(1):63-6. Available from: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/18