OLIGOPOLI DAN KARTEL PADA INDUSTRI SEMEN INDONESIA: 1998-2001. Jurnal Bisnis dan Akuntansi, [S. l.], v. 4, n. 2, p. 165–182, 2019. DOI: 10.34208/jba.v4i2.551. Disponível em: https://jurnaltsm.id/index.php/JBA/article/view/551. Acesso em: 9 jun. 2025.