KHAMIS, Mwatum. Challenges and Opportunities of Implementing Digital Economy Tax Policies in Zanzibar Compared to Other East African Nations. International Tax Law Review, Ahmedabad, India, v. 3, n. 3, p. 28–43, 2023. Disponível em: https://journal.thelawbrigade.com/itlr/article/view/943. Acesso em: 17 apr. 2026.