@unpublished{repository30515,
            note = {Unpublished},
           title = {Praktikum Kimia Organik 2021},
       publisher = {Universitas Muhammadiyah Prof. DR HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/30515/},
          author = {Hariyanti, Hariyanti}
}