Wicaksono, Y.P. and Budiyanto, B. 2026. The Effect of Product Quality, Price, and Promotion on iPhone Smartphone Purchase Decisions with Brand Image as a Moderating Variable (A Study of Generation Z STIESIA Surabaya in 2025). Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 9, 2 (Jun. 2026), 15954-15964. DOI:https://doi.org/10.31538/iijse.v9i2.10122.