(3GdJCejf ef GdeSFhdjI GdeOfjI aj GdeLGd GdWHj (B/s - (3eCehf, YHO GdQTjOs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1986)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJCejfs -- (3bhGfjf hJTQjYGJs; (3GdWHs -- (3bhGfjf hJTQjYGJs