HARTANA, H. IMPLICATION OF GROUP COMPANY EXPANSION TO MONOPOLY PRCTICE AND UNFAIR BUSINESS COMPETITION (Study Case : Coal Mining Industry). Jurnal Komunikasi Hukum (JKH), [S. l.], v. 6, n. 1, p. 161–175, 2020. DOI: 10.23887/jkh.v6i1.23467. Disponível em: https://ejournal.undiksha.ac.id/index.php/jkh/article/view/23467. Acesso em: 5 dec. 2024.