Muhammad, Fiqih, and Nasrul Ilminnafik. “Optimasi Prestasi Motor Bakar Empat Langkah Berbahan Bakar Liquefied Petroleum Gas Dengan Water Injection”. ReTII (November 24, 2018). Accessed June 4, 2026. https://journal.itny.ac.id/index.php/ReTII/article/view/1001.