AL-RAWI, Y. A. .; IMLUS, M. H. .; YUSUP, Y. .; YAHYA, S. B. . The Optimal Progressive Tax Policy to Reduced Vehicles Externalities. Journal of Asian Scientific Research, [S. l.], v. 8, n. 8, p. 265–276, 2018. DOI: 10.18488/journal.2.2018.88.265.276. Disponível em: https://archive.aessweb.com/index.php/5003/article/view/3894. Acesso em: 13 may. 2024.