Kurniawan, Ardi, Siska Putri Pamungkas, and Sediono. “Analisis Tingkat Kepuasan Customer Terhadap Layanan Staff Di Store Zara Pakuwon Mall Surabaya Dengan Metode Importance Performance Analysis (IPA) Dan Kano”. MUST: Journal of Mathematics Education, Science and Technology 8, no. 1 (July 13, 2023): 91–106. Accessed September 30, 2026. https://journal.um-surabaya.ac.id/matematika/article/view/17690.