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Firmansyah, Rizky Arif (2025) Pengaruh Persepsi Harga,Variasi Produk, dan Kualitas Layanan Terhadap Loyalitas Konsumen Pada Warung Salire di Ngagel Surabaya. (The Influence of Price Perception, Product Variety, and Service Quality on Consumer Loyalty at Warung Salire in Ngagel Surabaya). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.