IDREES, S. A.; MUSTAFA, L. L.; SALEEM, S. S. Improvement Viscosity Index of Lubricating Engine Oil Using Low Molecular Weight Compounds. Science Journal of University of Zakho, [S. l.], v. 7, n. 1, p. 14–17, 2019. DOI: 10.25271/sjuoz.2019.7.1.572. Disponível em: https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/572. Acesso em: 19 apr. 2024.