(3ef CSQGQ GdJYHjQ aj GdbQBf (B:s (3MQha GdbQBf (B/s - (3dGTjf, YHO GdaJGM CMeOs ((3LOI, GdSYhOjI (B:s (3TQcI ecJHGJ YcGX,s, 1983)
(3HHdjhLQGajI (B: (3U(B. 193-198.s
Keywords: (3GdbQBfs -- (3HdGZIs; (3GdbQBfs -- (3CdaGXs