@unpublished{repository1988,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
           title = {BAP, Absen, dan Nilai Praktikum Kimia Organik 1 kelas 2A (A2)},
             url = {http://repository.uhamka.ac.id/id/eprint/1988/},
          author = {Rachmania, Rizky Arcinthya}
}