Using Vacuum Distillation Technique to Treat Waste Lubricating Oil and Evaluation its Efficiency by Chromatographic Methods. Al-Nahrain Journal of Science, [S. l.], v. 20, n. 2, p. 17–24, 2017. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/73.. Acesso em: 28 apr. 2024.