PERBANDINGAN PREDIKSI PRODUKSI TIMAH MENGGUNAKAN MODEL SIMPLE MOVING AVERAGES, WEIGHTED MOVING AVERAGES DAN DATA AKTUAL DI PROVINSI KEPULAUAN BANGKA BELITUNG: COMPARISON PREDICTION OF TIN PRODUCTION USING SIMPLE MOVING AVERAGES MODELS, WEIGHTED MOVING AVERAGES AND ACTUAL DATA IN BANGKA BELITUNG ISLANDS PROVINCE. Fraction [Internet]. 2023 Jun. 21 [cited 2026 Mar. 30];3(1):29-35. Available from: https://fraction.ubb.ac.id/index.php/fraction/article/view/40