Javid, Abdul Hakim, S. Ashfaque Ahmed, R. Nirmal Kumar, and Syed Amjad Ahmed. “Influence of Compression Ratio on the Combustion and Emission Behaviour of Ultrasonically Synthesised Animal-Fat Biodiesel”. Bulletin of the Polish Academy of Sciences Technical Sciences (July 15, 2026): 2345. Accessed August 14, 2026. https://wydawnictwo.pan.pl/index.php/bpasts/article/view/2345.