Nurcahyadi, T., Wahyudi, W., Ruswanto, D. I., Ramadhani, F. M., Sidiq, B., & Handoko, W. T. (2017). Performance of a 160 cc Four-Stroke Engine Using Non-Programmable Aftermarket CDI and Aftermarket Ignition Coil When Operating With Three Types of Gasoline. Semesta Teknika, 20(2), 125–131. https://doi.org/10.18196/st.v20i2.3347