“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)”. Procedia of Engineering and Life Science, vol. 1, no. 2, July 2021, https://doi.org/10.21070/pels.v1i2.1030.