@unpublished{repository15733,
       publisher = {Universitas Muhammadiyah Prof.Dr.Hamka},
           title = {5.\_2019.02.19\_Pradipta\_2018\_J.\_Phys.\_\_Conf.\_Ser.\_948\_012071.pdf Turnitin},
            note = {Unpublished},
          author = {Trisna Roy Pradipta, TRP},
             url = {http://repository.uhamka.ac.id/id/eprint/15733/}
}