Rahmat, B., and M. B. R. Wijaya. “Performance Comparison of One Cylinder Combustion Engine With Variations of Compression Pressure & Octane Number Gasoline”. SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin, vol. 17, no. 1, June 2023, pp. 31-37, doi:10.24853/sintek.17.1.31-37.