@unpublished{repository46650,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
           title = {4. Arabiyyah Li Attijaarah 4B},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/46650/},
          author = {Doni Wahidul Akbar, Doni}
}