@techreport{repository572,
            type = {Working Paper},
            year = {2013},
       publisher = {Kementerian Pendidikan dan Kebudayaan},
           title = {Modul Mata Pelajaran Sejarah SMA Kelas X},
             url = {http://repository.uhamka.ac.id/id/eprint/572/},
          author = {Gunawan, Rudy}
}