Kisworo, Catur A. “Implementation of a Digital Correspondence Administration System to Improve Service Efficiency in Local Government Offices”. Jurnal Sistem Informasi dan Teknik Informatika (JAFOTIK) 4, no. 1 (February 23, 2026): 31–37. Accessed February 25, 2026. https://journal.lenterailmu.com/index.php/jafotik/article/view/101.