ANALISIS KEPUASAN PELANGGAN MENGGUNAKAN METODE ROUGH SET. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 4, n. 2, p. 227–230, 2021. DOI: 10.54314/jssr.v4i2.647. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/647.. Acesso em: 21 jul. 2026.