?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Faiz&rft.au=Faiz%2C+Muhammad&rft.aufirst=Muhammad&rft.inst=Universitas+Negeri+padang&rft.date=2022&rft.degree=Bachelor%2FSkripsi&rft.title=Estimasi+Sumberdaya+Batubara+pada+Pit+Timur+PT.+Allied+Indo+Coal+Jaya%2C+Kota+Sawahlunto%2C+Sumatera+Barat