R. HAIDER; I. H. SHEIKH; N. NAZ; M. F. ALAM; M. NADEEM; M. ARSHAD; T. MAHMOOD. Comparison of emissions from Pre-Euro, Euro-II and Euro-IV Motorcycles and Cars in Lahore. Pakistan Journal of Science, [S. l.], v. 76, n. 04, p. 654–660, 2024. DOI: 10.57041/vol76iss04pp654-660. Disponível em: https://pjosr.com/index.php/pjs/article/view/1301. Acesso em: 12 may. 2025.