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Hasbullah H, Sriyono S. Unlocking iPhone Brand Loyalty and Extension Insights: Membuka Wawasan Loyalitas dan Perluasan Merek iPhone. ijins [Internet]. 2024 Jan. 10 [cited 2025 Apr. 12];25(1):10.21070/ijins.v25i1.1091. Available from: https://ijins.umsida.ac.id/index.php/ijins/article/view/1091