C. D. Permatasari and A. Hidayat, “Analisis Kepuasan atas Atribut Loyalitas Pelanggan Heavenly Blush Menggunakan Customer Satisfaction Index: Heavenly Blush’s Customer Rating Analysis on Loyalty and Repurchase Attributes”, JMAEKA, vol. 3, no. 2, pp. 914–925, Oct. 2026.