MANIK, Rionaldo; SOEGESTI, Dwi Gema. The Influence of Social Media Promotion and Electronic Payment Systems on Purchase Decisions: Case Study from Users of Shopee in Bandar Lampung, Indonesia. Golden Ratio of Marketing and Applied Psychology of Business, [S. l.], v. 6, n. 1, p. 150–161, 2025. DOI: 10.52970/grmapb.v6i1.1324. Disponível em: https://goldenratio.id/index.php/grmapb/article/view/1324. Acesso em: 15 apr. 2026.