?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Fitri&rft.au=Fitri%2C+Erna&rft.aufirst=Erna&rft.title=Sistem+Tracking+Cahaya+Matahari+pada+Photovoltaic+Berbasis+Mikrokontroller&rft.degree=Bachelor%2FSkripsi&rft.inst=Universitas+Negeri+Padang&rft.date=7+September+2017