Analisis Kausalitas antara Kualitas Produk, Kualitas Pelayanan, dan Loyalitas Pelanggan di PT. FIFGROUP. JURMATIS [Internet]. 2024 Aug. 26 [cited 2025 Dec. 16];6(2). Available from: https://ojs.unik-kediri.ac.id/index.php/jurmatis/article/view/5812