@unpublished{repository51551,
            note = {Unpublished},
           title = {Menejemen Haji dan Umroh},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/51551/},
          author = {Doni Wahidul Akbar, Doni}
}