Nurhasanah Febriyanti Harahap, Rizka Khairunnisya Br Sinaga, Amelia Amelia, Siti Nurhaliza, Nurul Nazwa Ayu Malinda, Adrial Falahi, & Mhd Dani Habra. (2025). Implementation of Integrated Information System in Optimization of Public Services in The Regional Revenue Agency of Deli Serdang. EPaper Bisnis : International Journal of Entrepreneurship and Management , 2(2), 123–128. https://doi.org/10.61132/epaperbisnis.v2i2.373