LI, Hancheng. The Long-Term Impact of Push Notification Timing and Frequency on Customer Loyalty: A Causal Analysis of ROI and User Behavior. Finance & Economics, [S. l.], v. 3, n. 6, p. 9472, 2025. DOI: 10.61173/87fzh966. Disponível em: https://fe.deanfrancis.press/article/view/319. Acesso em: 4 nov. 2026.