RISKIAH, Delian Aupanisa; SAFARUDDIN, Safaruddin. PROSES PRODUKSI SEMEN PORTLANT PT. SEMEN BATURAJA. Jurnal Multidisipliner Bharasumba, [S. l.], v. 1, n. 04, p. 430–444, 2022. DOI: 10.62668/bharasumba.v1i04.297. Disponível em: https://azramedia-indonesia.azramediaindonesia.com/index.php/bharasumba/article/view/297. Acesso em: 21 apr. 2026.