PRASETIO, Vasco Mario; GULTOM, Pesta. The Influence of Influencer Marketing and Product Differentiation on Skincare Purchasing Decisions on Instagram Among Generation Z in Medan City: Pengaruh Influencer Marketing Dan Diferensiasi Produk Terhadap Keputusan Pembelian Skincare Di Instagram Pada Kalangan Generasi Z Di Kota Medan. PROCEEDING INTERNATIONAL BUSINESS AND ECONOMICS CONFERENCE (IBEC), [S. l.], v. 4, n. 1, p. 403–413, 2025. DOI: 10.47663/ibec.v4i1.314. Disponível em: https://conference.eka-prasetya.ac.id/index.php/IBEC/article/view/314. Acesso em: 28 dec. 2025.