?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Diska+N&rft.au=Diska+N%2C+Mhd+Hafiz&rft.aufirst=Mhd+Hafiz&rft.inst=Universitas+Negeri+padang&rft.date=February+2020&rft.degree=Bachelor%2FSkripsi&rft.title=Analisis+Kestabilan+Lubang+Bukaan+dengan+Pengujian+Flat+Jack+pada+Dinding+Tunnel+1+Tambang+Bawah+Tanah+PT+Allied+Indo+Coal+Jaya%2C+Sawahlunto