Haryani, Indri, Valensi Erza, and Hendri Bhirowo. “A Comparative Review of Ancillary Service Markets: Benchmarking Global Practices and Implications for Indonesia ”. Jurnal Offshore: Oil, Production Facilities and Renewable Energy 10, no. 1 (June 25, 2026): 14–28. Accessed July 26, 2026. https://ejournal.up45.ac.id/index.php/Jurnal_OFFSHORE/article/view/2750.