Analisis Kausalitas antara Kualitas Produk, Kualitas Pelayanan, dan Loyalitas Pelanggan di PT. FIFGROUP. JURMATIS [Internet]. 2024 Aug. 26 [cited 2026 Mar. 17];6(2). Available from: https://ojs.unik-kediri.ac.id/index.php/jurmatis/article/view/5812