Abd El-Aal, M.H.Z. 2025. The Effect of Gray Marketing on Brand Value from the Perspective of Customers: A Field Study on Users of International Sports Brands in Cairo Governorate. The Arab Journal of Administration. 45, 5 (Sep. 2025), 303–332. DOI:https://doi.org/10.21608/aja.2025.334960.1745.