2023. 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. 4, (July 2023). DOI:https://doi.org/10.21070/pels.v4i0.1424.