Penerapan Konsep 4P (Product, Price, Place, Promotion) dalam Pengelolaan Toko Kosmetik “Dewi Kosmetik” di Jl.Kapten Muchtar Lubis, Medan Timur. Journal of Golden Generation Economic, [S. l.], v. 1, n. 2, p. 100–109, 2026. DOI: 10.65244/jggeconomic.v2i1.318. Disponível em: https://ejournal.lppnusantara.com/index.php/JGGEconomic/article/view/318. Acesso em: 26 jul. 2026.