@unpublished{repository26434,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
            note = {Unpublished},
           title = {Bukti ajar Fuzzy},
          author = {Hamid Al Jufri, Jufri},
             url = {http://repository.uhamka.ac.id/id/eprint/26434/}
}