?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Rizky%2C+Muhammad&rft.aulast=Rizky&rft.aufirst=Muhammad&rft.title=Rancang+Bangun+Poros+dan+Transmisi+Mesin+Perontok+Jagung&rft.inst=Universitas+Negeri+Padang&rft.date=September+2025&rft.degree=Bachelor%2FSkripsi