Kurniawan, Taufik, et al. “The Impact of Trust And Promotion on The Increase In Consumer Usage of The LINKAJA Application at Margomulyo Surabaya Fuel Station”. Journal of Economics, Business, and Government Challenges, vol. 8, no. 1, Apr. 2025, pp. 61-70, doi:10.33005/ebgc.v8i1.1609.