@unpublished{repository42254,
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
            note = {Unpublished},
           title = {Surat tugas dan sertifikat workshop internasional "Achieving Publication in Reputable Journals (Pre-Ph.D.Coaching)"},
             url = {http://repository.uhamka.ac.id/id/eprint/42254/},
          author = {Tsurayya, Ayu}
}