Peramalan Jumlah Ekspor Batubara Nrgara Tiongkok Menggunakan Metode Double Moving Average dan Double Exponential Smoothing. jiip [Internet]. 2024Jul.3 [cited 2025Jul.9];7(7):7329-35. Available from: https://jiip.stkipyapisdompu.ac.id/jiip/index.php/JIIP/article/view/5350