SINAMBELA, Ella Anastasya; DARMAWAN, Didit. Relevance of Email Marketing in the Contemporary Digital Marketing Communication Mix. Studi Ilmu Sosial Indonesia, [S. l.], v. 1, n. 2, p. 301–324, 2021. Disponível em: https://sisijournals.id/index.php/sisi/article/view/91. Acesso em: 17 jun. 2026.