@unpublished{repository40440,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
           title = {SK, BAP, Kehadiran, Nilai Kewirausahaan},
            note = {Unpublished},
          author = {Natalia, Ana},
             url = {http://repository.uhamka.ac.id/id/eprint/40440/}
}