@unpublished{repository27372,
           title = {BAP, DKM, DNM Ilmu dan Teknologi Lingkungan 6B},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/27372/},
          author = {Rifky, Rifky}
}