“PROYEKSI HARGA LADA PUTIH DI KOTA PANGKAL PINANG MENGGUNAKAN EXPONENTIAL SMOOTHING: PROJECTION OF WHITE PEPPER’S PRICE IN PANGKAL PINANG CITY PROVINCE OF BANGKA BELITUNG USING EXPONENTIAL SMOOTHING”. Fraction: Jurnal Teori Dan Terapan Matematika, vol. 1, no. 1, Dec. 2021, pp. 26-30, https://doi.org/10.33019/fraction.v1i1.4.