@unpublished{repository54976,
       publisher = {UNIVERSITAS MUHAMMADIYAH PROF. DR. HAMKA},
           title = {Revia Ayunindyasari\_Tesis},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/54976/},
          author = {Eko Digdoyo, Eko}
}