Maghpiroh, Ana, et al. “PENGARUH PENAMBAHAN FLY ASH TERHADAP KUALITAS SEMEN DI PT SEMEN BATURAJA TBK”. Jurnal Multidisipliner Bharasumba, vol. 2, no. 04, Oct. 2023, pp. 296-0, doi:10.62668/bharasumba.v2i04.806.