POPO SURYANA. E-MAIL MARKETING STRATEGY IN INCREASING CUSTOMER RETENTION IN E-COMMERCE. Jurnal Ekonomi, [S. l.], v. 11, n. 03, p. 2168–2172, 2022. Disponível em: https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/4048. Acesso em: 14 jul. 2026.