?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Abdillah&rft.au=Abdillah%2C+Aufa+Fikri&rft.aufirst=Aufa+Fikri&rft.inst=Universitas+Negeri+padang&rft.date=November+2021&rft.degree=Bachelor%2FSkripsi&rft.title=Studi+Karakteristik+Mineral+Pirit+pada+Seam+Batubara+A2+dan+C+di+Pit+1+Utara+Penambangan+Banko+Barat+PT.+Bukit+Asam%2C+Tbk+Tanjung+Enim+Sumatera+Selatan