Javid, A. H., Ashfaque Ahmed, S., Nirmal Kumar, R., & Amjad Ahmed, S. (2026). 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, 2345. https://doi.org/10.24425/bpasts.2026.2345