Ardyanto, Fakhriyan, Zafira Naja Sakina, Suyono Thamrin, and Rudy Laksmono. “Co-Hydrothermal Carbonization: An Innovative Solution for Enhancing National Energy Resilience Through the Production of Clean Solid Fuels from Sewage Sludge and Coal Slime”. Jurnal Pertahanan: Media Informasi tentang Kajian dan Strategi Pertahanan yang Mengedepankan Identity, Nasionalism dan Integrity 12, no. 1 (May 2, 2026): 22–37. Accessed July 23, 2026. https://upgradeojs.rifqisyams.id/index.php/DefenseJournal/article/view/20031.