(3bGfhf GdQYGjI GdGLJeGYjI (B/s - (3GdYQGb(B.s (3hRGQI GdYOds ((3HZOGO (B:s (3hRGQI GdYOd,s, 1980)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJTQjYGJ GdGLJeGYjIs -- (3GdYQGbs; (3GdNOeI GdGLJeGYjIs -- (3bhGfjf hJTQjYGJs -- (3GdYQGbs