Maharani, S., and N. Nurhayati. “Peran PDAM Tirta Sari Kota Binjai Dalam Pengolahan Bahan Baku Air Minum”. JIKEM: Jurnal Ilmu Komputer, Ekonomi Dan Manajemen, Vol. 2, no. 2, July 2022, https://jurnal.unimen.cloud/index.php/JKM/article/view/4638.