@unpublished{repository47445,
           title = {Sertifikat Pembicara Seminar Kolaborasi UHAMKA dan UNISNU Jepara},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
            note = {Unpublished},
          author = {Mubarak, Ahmad},
             url = {http://repository.uhamka.ac.id/id/eprint/47445/}
}