RAHMAT PUTRA AHMAD HASIBUAN; NURFADHILAH AHMAD HASIBUAN. Digital Marketing Strategy for International Expansion: A Case Study of Doctor Helmet Medan. JUMINTAL: Jurnal Manajemen Informatika dan Bisnis Digital, [S. l.], v. 4, n. 1, p. 74–84, 2025. DOI: 10.55123/jumintal.v4i1.5306. Disponível em: https://journal.literasisains.id/index.php/jumintal/article/view/5306. Acesso em: 21 feb. 2026.