ROHMANTORO, Didik; 						PURNOMO, Bayu Gilang; 						AMIRUDDIN, Muhamad.
 KONTRIBUSI TEKNOLOGI HYDROCARBON CRACK SYSTEM TERHADAP NOISE  MESIN KENDARAAN SEPEDA MOTOR 4-TAK.
<strong>Journal of Vocational Education and Automotive Technology</strong>, [S.l.], v. 2, n. 2, p. 69-77, nov. 2020.
ISSN 2715-9922.
Available at: &lt;<a href="https://www.e-journal.ivet.ac.id/index.php/joveat/article/view/1325" target="_new">https://www.e-journal.ivet.ac.id/index.php/joveat/article/view/1325</a>&gt;. Date accessed: 05 july 2025.