@unpublished{repository6578,
            note = {Unpublished},
            year = {2021},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
           title = {Sertifikat Ambassadorial Lectures 2020},
           month = {March},
             url = {http://repository.uhamka.ac.id/id/eprint/6578/},
          author = {Sukmara, Rina}
}