Jamaludin, J., Ramadhan, H. J., & Hariyanto, D. (2020). STUDI EKSPERIMEN PENGGUNAAN VALVE HEAD MUSHROOM DAN VALVE HEAD TULIP PADA RECIPROCATING ENGINE TERHADAP PERFORMA ENGINE. Jurnal Penelitian , 5(3), 214-221. https://doi.org/10.46491/jp.v5i3.499