@unpublished{repository56194,
           title = {Bukti Ajar MK Filsafat Ilmu Kelas 2A},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/56194/},
          author = {Sulaeman, Sulaeman}
}