Harco, Rino. “Analisa Crack Impeller Pada Fan Motor Assy”. Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan 9, no. 1 (May 31, 2020): 15–22. Accessed October 4, 2024. https://ojs.umrah.ac.id/index.php/sustainable/article/view/864.