Penerapan Konsep 4P (Product, Price, Place, Promotion) dalam Pengelolaan Toko Kosmetik “Dewi Kosmetik” di Jl.Kapten Muchtar Lubis, Medan Timur. JGGEconomic [Internet]. 2026 Jan. 17 [cited 2026 Oct. 27];1(2):100-9. Available from: https://ejournal.lppnusantara.com/index.php/JGGEconomic/article/view/318