MA, Junran; HECHUN, Zhao; HE, Wang. Research on optimal environmental tax, sub-optimal selection and influencing factors in China. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 7, n. 3, p. 13–18, 2019. DOI: 10.31686/ijier.vol7.iss3.1221. Disponível em: https://scholarsjournal.net/index.php/ijier/article/view/1221. Acesso em: 1 jul. 2025.