Pengaruh Harga Batubara Dan Biaya Produksi Terhadap Profitabilitas Pt Bukit Asam Tbk. Journal of Economic and Business Advancement, [S. l.], v. 2, n. 1, p. 361–373, 2026. DOI: 10.65310/kxwrz934. Disponível em: https://scriptaintelektual.com/ascendia/article/view/1389. Acesso em: 7 oct. 2026.