TERRY HENSHAW; IFY L. NWAOGAZIE. Setting Regulatory Limits for Sulphur Content in Premium Motor Spirit (PMS): A Case of Degraded Vehicles. Archives of Current Research International, [S. l.], v. 7, n. 3, p. 1–17, 2017. DOI: 10.9734/ACRI/2017/33241. Disponível em: https://journalacri.com/index.php/ACRI/article/view/108. Acesso em: 21 sep. 2025.