@unpublished{repository15731,
            note = {Unpublished},
           title = {18. IJNAA\_Volume 13\_Issue 1\_Pages 975-982 Turnitin},
       publisher = {Universitas Muhammadiyah Prof.Dr.Hamka},
          author = {Trisna Roy Pradipta, TRP},
             url = {http://repository.uhamka.ac.id/id/eprint/15731/}
}