BARRETO, Carlos Afonso. The Effect of Direct and Indirect Non-Oil and Gas Taxes on Domestic Revenue in Timor Leste. International Journal of Environmental, Sustainability and Social Science, [S. l.], v. 1, n. 3, p. 45–50, 2020. DOI: 10.38142/ijesss.v1i3.43. Disponível em: https://journalkeberlanjutan.com/index.php/ijesss/article/view/43. Acesso em: 25 aug. 2026.