“Analisis Pengaruh Variasi Putaran Engine Terhadap Nilai Performansi Engine Liebherr D9512”. Journal of Applied Mechanical Engineering and Renewable Energy 6, no. 2 (August 1, 2026): 61–65. Accessed August 5, 2026. https://journal.isas.or.id/index.php/JAMERE/article/view/1637.