?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Fitra&rft.au=Fitra%2C+Riova+Habi&rft.aufirst=Riova+Habi&rft.inst=Universitas+Negeri+padang&rft.date=September+2023&rft.degree=Bachelor%2FSkripsi&rft.title=Pengaruh+Total+Resistance+terhadap+Produktivitas+Pengangkutan+Batubara+di+Front+B1+Pt.+Allied+Indo+Coal+Jaya%2C+Kecematan+Talawi%2C+Kota+Sawahlunto