Galih Muji Tri Sutrisno, and Togik Hidayat. “IMPROVING UNDERBONE MOTORCYLES IGNITION SYSTEM USING CDI PROGRAMMED BY CAMSHAFT DURATION ON A 4-STEP 125 CC MOTOR”. Journal of Engineering, Electrical and Informatics, vol. 3, no. 2, June 2023, pp. 17-26, doi:10.55606/jeei.v3i2.1479.