Lubis, Mustapa Husein, Akhir Abadi Tanjung, and Desy Martina. “PERAMALAN PERSEDIAAN VOUCHER INTERNET DENGAN METODE SINGLE SINGLE EXPONENTIAL SMOOTHING”. JUTSI: Jurnal Teknologi dan Sistem Informasi 3, no. 1 (February 22, 2023): 9-16. Accessed October 11, 2025. https://jurnal.stmikroyal.ac.id/index.php/jutsi/article/view/2054.