SETYANINGRUM, Fitriana Eka. Customer Satisfaction Index (CSI) and Importance Performance Analysis (IPA) Methods of Exclusive Matte Lip Cream. IJIEM - Indonesian Journal of Industrial Engineering and Management, Jakarta, Indonesia, v. 1, n. 2, p. 116–126, 2020. DOI: 10.22441/ijiem.v1i2.10220. Disponível em: https://training-ojs3-publikasi.mercubuana.ac.id/index.php/ijiem/article/view/10220. Acesso em: 28 may. 2026.