(3OQGSGJ aj fXQjI GdYbO GdEOGQj (B/s - (3GdTQja, YRjRI MGeO s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1982)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdYbhO GdEOGQjIs -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3GdbGfhf GdEOGQjs -- (3bhGfjf hJTQjYGJs -- (3eUQs