PARAWANSYA, Osyellah indar; SAFARUDDIN, Safaruddin. VERIFIKASI METODE PENENTUAN KADAR SO3 TERHADAP WAKTU PENGENDAPAN DALAM SEMEN DI PT. SEMEN BATURAJA. DE FACTO: Journal of international multidisciplinary sciences, [S. l.], v. 1, n. 02, p. 96–105, 2023. DOI: 10.62668/defacto.v1i02.782. Disponível em: https://azramedia-indonesia.azramediaindonesia.com/index.php/defacto/article/view/782. Acesso em: 1 may. 2026.