?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Putri&rft.au=Putri%2C+Viona+Tri&rft.aufirst=Viona+Tri&rft.inst=Universitas+Negeri+padang&rft.date=February+2019&rft.degree=Bachelor%2FSkripsi&rft.title=Kajian+Keselamatan+dan+Kesehatan+Kerja+pada+Proses+Gali%2C+Muat%2C+dan+Angkut+Batubara+pada+Lubang+BMK+34+di+CV.+Bara+Mitra+Kencana