@unpublished{repository54559,
           title = {NAHWU 4B},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
          author = {Doni Wahidul Akbar, Doni},
             url = {http://repository.uhamka.ac.id/id/eprint/54559/}
}