Hadi A, Permana R. Sales Management System Design And Promotion Media (Marketplace) Sales Of Umkm, Padang City (Perancangan Sistem Manajemen Penjualan Dan Media Promosi (Marketplace) Penjualan Umkm Kota Padang). komtekinfo [Internet]. 2019 Nov. 19 [cited 2026 May 13];6(2):155-9. Available from: https://jkomtekinfo.org/ojs/index.php/komtekinfo/article/view/54