NST, R. R.; HASIBUAN, M. I.; ELVINA, E. Strategic Email Marketing for Customer Retention: A Study of E-Commerce Practices in Panai Hulu. International Journal of Economics Development Research (IJEDR), [S. l.], v. 6, n. 5, p. 2856–2866, 2025. DOI: 10.37385/ijedr.v6i5.9223. Disponível em: https://journal.yrpipku.com/index.php/ijedr/article/view/9223. Acesso em: 18 sep. 2025.