ANALISIS PERBANDINGAN METODE DOUBLE EXPONENTIAL SMOOTHING DAN DOUBLE MOVING AVERAGE PADA KASUS PERAMALAN PENJUALAN KOPI BUBUK DI LOPO MANDHELING COFFEE. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 8, n. 3, p. 4688–4694, 2025. DOI: 10.54314/jssr.v8i3.4199. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/4199.. Acesso em: 13 apr. 2026.