Harahap FH, Tobing IF, Suhaimi M, Batubara M. Viral Marketing Pada Usaha Mikro Kecil Menengah (UMKM) Halal. JIEI [Internet]. 2023 Mar. 27 [cited 2025 Jul. 22];9(1):1448-56. Available from: https://www.jurnal.stie-aas.ac.id/index.php/jei/article/view/8503