@unpublished{repository9691,
            note = {Unpublished},
            year = {2021},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
           title = {SURAT TUGAS WEBINAR PENGUATAN RISET},
           month = {August},
             url = {http://repository.uhamka.ac.id/id/eprint/9691/},
          author = {Utari, Retno}
}