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. 4, p. 654–660, 2024. DOI: 10.57041/vol76iss4pp%p. Disponível em: https://paas-pk.org/index.php/pjs/article/view/1301. Acesso em: 30 oct. 2025.