(3GdJaSjQ GdehVhYi SjOfG SdjeGf Ydjg GdSdGe ai GdbQCf GdcQje (B/ s - (3YHOGdSdGe eMehO GdPgHis ([S.N] : (3LGeYI GdGRgQ , s, 1991)
Keywords: (3GdGfHjGAs; (3GdGfHjGA ai GdbQCfs; (3GdQSds; (3SdjeGf Ydjg GdSdGes