@unpublished{repository7982,
            note = {Unpublished},
          school = {univerista muhammadiyah prof. dr. hamka},
            year = {2021},
           month = {March},
           title = {aldehid dan keton},
             url = {http://repository.uhamka.ac.id/id/eprint/7982/},
          author = {wirman, adia putra}
}