(3ehShYI GdYde hGdJcfhdhLjG GdejSQI (B- ( 11 ) : (3GdSaf GdMOjKIs - (3SYO GdOjf(B. (3YUGes ((3OGQ GdcJGH GdeUQjs (3GdbGgQIs, 1991)
Keywords: (3GdYdhe GdJWHjbjIs; (3ehShYGJs; (3GdSaf GdMOjKIs