Firmansyah, Muhammad, Ikhwanul Qiram, and Gatut Rubiono. “Pengaruh Variasi Kekasaran Lubang Nozzle Dengan Campuran Bahan Bakar Pertalite Dan Spiritus Terhadap Karakteristik Nyala Api”. V-MAC (Virtual of Mechanical Engineering Article) 6, no. 2 (October 31, 2021): 57-60. Accessed January 19, 2022. https://ejournal.unibabwi.ac.id/index.php/vmac/article/view/1518.