(3GhQGb SjQI GOQjS GdPgfjI (B. / s - (3YHOGddg GdYQGhis; (3YHOGddg GdYQhHis ([S.N] : (3GdeQcR GdKbGai GdYQHi , s, 1989)
Keywords: (3GdJQGLe GdPGJjIs; (3YHOGddg GdYQhis