Risnawati, Maria, Wardi Syafmen, and Bunga Mardhotillahs. “Prediksi Penjualan Emas Di PT. Pegadaian Area Jambi Menggunakan Fuzzy Time Series Cheng”. Jurnal Ekonomi Dan Statistik Indonesia 3, no. 1 (June 30, 2023): 70-84. Accessed May 23, 2026. https://www.jurnaljesi.com/index.php/jurnaljesi/article/view/126.