Novrina Sahera Lubis, and Simson Ginting. “Quality of Service Issuance of Trading Business License at the One Door Integrated Service and Investment Department of Medan City”. Konfrontasi: Jurnal Kultural, Ekonomi dan Perubahan Sosial 9, no. 3 (September 29, 2022): 464-471. Accessed April 4, 2026. https://www.konfrontasi.net/index.php/konfrontasi2/article/view/241.