@unpublished{repository34789,
            note = {Unpublished},
       publisher = {FEB UHAMKA},
           title = {Sertifikat Workshop Analisis Panel Data Menggunakan Stata},
             url = {http://repository.uhamka.ac.id/id/eprint/34789/},
          author = {Zulpahmi, Zulpahmi}
}