Huda Gimnastiar, Ainun, Andi Sanata, Danang Yudistiro, Nasrul Ilminnafik, Agus Triono, Imam Sholahuddin, and Dani Hari Tunggal Prasetiyo. “Syngas As An Alternative Fuel for Spark-Ignition Internal Combustion Engines: A Systematic Review”. V-MAC (Virtual of Mechanical Engineering Article) 11, no. 2 (October 28, 2026): 124–134. Accessed November 4, 2026. https://ejournal.unibabwi.ac.id/index.php/vmac/article/view/8231.