(3ebOeI dJGQjN GdacQ GdYdej aj GdESdGes - (3CMeO Sdje SYjOGfs ((3GdchjJs (3GdeLdS GdhWfj ddKbGaI hGdafhf hGdBOGH HGdchjJs, 1988)
Keywords: Natural Sciences (3GdYdhe GdHMJIs; General