?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Jaini&rft.au=Jaini%2C+Rahkmad&rft.aufirst=Rahkmad&rft.title=Rancangan+Bangun+Alat+Ukur+Keasaman+dan+Kelembapan+Tanah+Berbasis+Arduino+328P&rft.degree=Bachelor%2FSkripsi&rft.inst=Universitas+Negeri+Padang&rft.date=2019