?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Wewhendro&rft.au=Wewhendro%2C+Jon&rft.aufirst=Jon&rft.title=Kondisi+Ekonomi+Masyarakat+Penambang+Batu+Pasir+di+Kenagarian+Pakan+Rabaa+Kecamatan+Koto+Parik+Gadang+Diateh+Kabupaten+Solok+Selatan&rft.degree=Bachelor%2FSkripsi&rft.inst=Universitas+Negeri+Padang&rft.date=2016