Safitri, D. ., Muzaki, M. M. ., & Safaruddin, S. (2022). OBSERVASI SIFAT, KANDUNGAN KIMIA & KADAR DEBU DI PT. SEMEN BATURAJA. Jurnal Multidisipliner Bharasumba, 1(04), 445–461. https://doi.org/10.62668/bharasumba.v1i04.296