Rahmat Putra Ahmad Hasibuan and Nurfadhilah Ahmad Hasibuan (2025) “Digital Marketing Strategy for International Expansion: A Case Study of Doctor Helmet Medan”, JUMINTAL: Jurnal Manajemen Informatika dan Bisnis Digital, 4(1), pp. 74–84. doi: 10.55123/jumintal.v4i1.5306.