Rimbawati, Himsar Ambarita, Tulus Burhanuddin Sitorus, and M Irwanto. 2024. “Artificial Neural Network (ANN) Backpropagation to Forecast 100% Renewable Energy in North Sumatra”. Metallurgical and Materials Engineering 30 (4):208-23. https://doi.org/10.63278/10.63278/mme.v31.1.