FAJRUL, D.; ILHAM; AFIFAH, N. Effectiveness of non-metal mineral and rock tax revenues. Income Journal., [S. l.], v. 1, n. 3, p. 117–123, 2022. Disponível em: http://income-journal.com/index.php/income/article/view/22. Acesso em: 28 aug. 2025.