Parawansya osyellah indar, Safaruddin S. VERIFIKASI METODE PENENTUAN KADAR SO3 TERHADAP WAKTU PENGENDAPAN DALAM SEMEN DI PT. SEMEN BATURAJA. defacto [Internet]. 2023 Aug. 31 [cited 2026 May 1];1(02):96-105. Available from: https://azramedia-indonesia.azramediaindonesia.com/index.php/defacto/article/view/782