8 1 10 Principles and Modern Application Ralph H. Petrucci Additional Author Harwood Additional Author mixed material 0023949317 Macmillan Pub. 10 Ralph H. Petrucci Additional Author Achmadi Additional Author mixed material Jakarta Erlangga Ralph H. Petrucci Additional Author Achmadi Additional Author mixed material Jakarta Erlangga Ralph H. Petrucci Additional Author Achmadi Additional Author mixed material Jakarta Erlangga 1987 Ralph H. Petrucci Additional Author Achmadi Additional Author mixed material Erlangga Prinsip dan Terapan Modern jilid 1./ Ralph H. Petrucci Additional Author Achmadi Additional Author mixed material Erlangga Prinsip dan terapan modern jilid 2 Ralph H. Petrucci Additional Author Achmadi Additional Author mixed material Erlangga Prinsip dan Terapan Modern,Jil 1 Ralph H. Petrucci William S. HarwoodF. Geoffrey Additional Author mixed material 97897901758896 SEMARANG Erlangga 2007