Hutabarat, N.A., Naibaho, W. and Siahaan, S.H. 2026. Performance analysis of automatic grass chopper and grass vacuuming machine with gasoline engine drive system. EDUCTUM: Journal Research. 5, 2 (Apr. 2026), 294–301. DOI:https://doi.org/10.56495/ejr.v5i2.1625.