NINGSIH, I. R. .; JAKARIA , R. B. . Analyzing Customer Satisfaction Using Importance Peformance Analysis (IPA) on 19 Liter Packaging Drinking Water Products: Menganalisa Kepuasan Pelanggan Menggunakan Importance Peformance Analysis (IPA) Terhadap Produk Air Minum Dalam Kemasan (AMDK) 19 Liter. Procedia of Engineering and Life Science, [S. l.], v. 4, 2023. DOI: 10.21070/pels.v4i0.1424. Disponível em: https://pels.umsida.ac.id/index.php/PELS/article/view/1424. Acesso em: 30 aug. 2025.