?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Putra&rft.au=Putra%2C+Ilham+Setiawan&rft.aufirst=Ilham+Setiawan&rft.inst=Universitas+Negeri+Padang&rft.date=February+2017&rft.degree=Bachelor%2FTugas+Akhir&rft.title=Analisis+Balik+Lereng+High+Wall+Pada+Penambangan+Batubara+Area+Central%2C+Pit+Timur%2C+PT+Kuansing+Inti+Makmur%2C+Desa+Tanjung+Belit%2C+Kecamatan+Jujuhan%2C+Kabupaten+Muaro+Bungo%2C+Provinsi+Jambi