(3YbHI Hf fGaY (B:s (3HWd GdaJM GdGSdGei (B/s - (3eMeO cGed MSf GdeMGeis ((3HjQhJ (B:s (3efThQGJ GdecJH GdYGdei ddWHGYI hGdfTQ ,s, 1985)
Keywords: (3YbHg Hf fGaY s; (3GfJTGQ GdGSdGes; (3GdeZQH GdYQHis; (3GdaJM GdGSdGeis; (3aJM GaQjbjGs