@unpublished{repository31165,
           title = {ZHD\_AHMD\_BD4},
         journal = {ZHD\_AHMD\_BD4},
       publisher = {Uhamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/31165/},
          author = {Zuhad, Ahmad}
}