Ryan, Ryan Rusnanda, Yazid Bindar, and Elvi Restiawaty. “Co-Firing of Pangkalan Susu Steam Power Plant Economic Potential of Green Energy Through Renewable Energy Certificate (REC)”. ITB Graduate School Conference 5, no. 1 (October 29, 2025). Accessed September 12, 2026. https://gcs.itb.ac.id/proceeding-igsc/index.php/igsc/article/view/654.