Iswan I, Garniwa I, Surjandari I. Data Optimization on the Accuracy of Forecasting Electricity Energy Sales Using Principal Component Analysis Based on Spatial. IJEEP [Internet]. 2021 Apr. 10 [cited 2024 Apr. 25];11(3):215-20. Available from: https://www.econjournals.com/index.php/ijeep/article/view/11010