RAHMAD PUTRA, Al Rifqi. KOEFISIEN KORELASI BEBERAPA HIMPUNAN KABUR. Jurnal Matematika UNAND, [S. l.], v. 7, n. 3, p. 1–8, 2019. DOI: 10.25077/jmu.7.3.1-8.2018. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/362. Acesso em: 4 nov. 2026.