Designing Web Based Offering and Sales Information System (Case Study : PT. Daya Berkah Sentosa Nusantara): Perancangan Sistem Informasi Penawaran dan Penjualan Berbasis Web (Studi Kasus : PT. Daya Berkah Sentosa Nusantara). PELS [Internet]. 2021 July 17 [cited 2026 Oct. 25];1(2). Available from: https://pels.umsida.ac.id/index.php/PELS/article/view/1030