SURYADI, A. .; ISLAMI, M. C. P. A. .; TAUFIQ, S. I. .; SANTOSO, B. . Company Quality Performance Using Customer Satisfaction Index Methods and Importance Performance Analysis at PT. XYZ. Nusantara Science and Technology Proceedings, Malang, Indonesia, p. 244-250, 2021. DOI: 10.11594/nstp.2021.1438. Disponível em: https://nstproceeding.com/index.php/nuscientech/article/view/515. Acesso em: 9 mar. 2025.