?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Marsal%2C+Marsal&rft.aulast=Marsal&rft.aufirst=Marsal&rft.degree=Bachelor&rft.inst=Universitas+Muhammdiyah+Prof.+Dr.+Hamka&rft.date=23+August+2019&rft.title=PERANCANGAN+SISTEM+KEAMANAN+GANDA+RUMAH+BERBASIS+MIKROKONTROLER+DAN+SMS+GATEWAY