?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Sugiono&rft.au=Sugiono%2C+Sugiono&rft.aufirst=Sugiono&rft.inst=Universitas+Negeri+padang&rft.date=August+2019&rft.degree=Bachelor%2FSkripsi&rft.title=Rancangan+Teknis+Penambangan+Batukapur+pada+WIUP+OP+412+Ha+di+PT+Semen+Padang