Ulfa, Jellysa, M Djamil, and Syamsul Rizal. “Sistem Administrasi Custumer Service Pada PT. LG Eletronik Dan Operator Cabang Banda Aceh”. Jurnal Ekonomi Manajemen dan Sekretari 2, no. 2 (December 30, 2017): 76–83. Accessed June 6, 2026. https://journal.lembagakita.com/jemensri/article/view/965.