?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Nur+Dika&rft.au=Pratama%2C+Nur+Dika&rft.aulast=Pratama&rft.inst=Universitas+Negeri+Yogyakarta&rft.date=14+May+2019&rft.degree=D3&rft.title=SISTEM+PERINGATAN+KEBOCORAN+GAS+LPG+DENGAN+PANGGILAN+TELPON+BERSUARA+DAN+PENDETEKSI+API+BERBASIS+ARDUINO