(3ehShYI GdYde hGdJcfhdhLjG GdejSQI (B- ( 4) : (3GdWGFQI (B.. (3ef GdOGNd s - (3SYO GdOjf(B. (3YUGes ((3OGQ GdcJGH GdeUQjs (3GdbGgQIs, 1991)
Keywords: (3GdYdhe GdJWHjbjIs; (3ehShYGJs; (3GdWGFQI s