@unpublished{repository19752,
           title = {BAP,DKM,DNM K3 dan Hukum Ketenagakerjaan 7A},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
            note = {Unpublished},
          author = {Rifky, Rifky},
             url = {http://repository.uhamka.ac.id/id/eprint/19752/}
}