(3MhGQGJ aj bVGjG GdhWf (B: s (3GdQCSeGdjI (B- (3GdJSjjS GdOjfj (B- (3GdETJQGcjI (B/ s - (3GdWQRj, fUQj NVQs ((3YeGf (B:s (3OGQ GdJfhjQ GdYdej,s, 1993)
Keywords: (3GdYdhe GdSjGSjIs; (3GdePGgH GdSjGSjIs