Siregar YR, Pakpahan S. Perancangan Sistem Informasi Penjualan Timbangan Berbasis Web Pada PT. Altraman. MEANS [Internet]. 2017 Jun. 30 [cited 2026 Sep. 10];2(1):12-5. Available from: https://ejournal.ust.ac.id/Jurnal_Means/article/view/16