Ningsih IR, Jakaria RB. 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. PELS [Internet]. 2023 Jul. 28 [cited 2025 Jun. 26];4. Available from: https://pels.umsida.ac.id/index.php/PELS/article/view/1424