Monica Puspadewi Widyastuti, and Yohan Wismantoro. “The Effect of Perceived Usefulness, Brand Image, and Promotion on Gopay E-Wallet User Loyalty in Semarang City”. Proceeding of the International Conference on Economics, Accounting, and Taxation 2, no. 2 (November 7, 2025): 60–70. Accessed November 18, 2025. https://prosiding.areai.or.id/index.php/ICEAT/article/view/149.