HARTANA, H. Regulation of Group Company Expansion Restrictions in the Coal Mining Sector Viewed from Indonesian Laws and Regulations. Jurnal Komunikasi Hukum (JKH), [S. l.], v. 7, n. 2, p. 520–526, 2021. DOI: 10.23887/jkh.v7i2.37983. Disponível em: https://ejournal.undiksha.ac.id/index.php/jkh/article/view/37983. Acesso em: 2 may. 2024.