WEBBY, B.; BESA, B. Economic Appraisal of Zambia’s Mineral Taxation Regimes. American Scientific Research Journal for Engineering, Technology, and Sciences, [S. l.], v. 18, n. 1, p. 279–296, 2016. Disponível em: https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/1572. Acesso em: 2 may. 2024.