@unpublished{ITNYREPOID498,
            year = {2002},
           title = {Perencanaan dan pembutan filter audio untuk telepon},
          school = {INSTITUT TEKNOLOGI NASIONAL yOGYAKARTA},
           month = {September},
          author = {ROYYAN BAYHAQI 310097013},
             url = {https://repository.itny.ac.id/id/eprint/498/},
        keywords = {FILTER AUDIO}
}