“Karakteristik Getaran Mesin Penggerak Berbahan Bakar Biogas Dengan Analisis Fast Fourier Transform (FFT)”. Borobudur Engineering Review 5, no. 2 (December 23, 2025): 50–62. Accessed September 28, 2026. https://coba.unimma.ac.id/benr/article/view/15660.