(3GdfXe GdTahi ai TYQ eG bHd GdGSdGe (B:s (3eTcdI GdehKhbjI (B/s - (3ehfQh, LjeS J,s; (3GdSfLdGhi, GHQGgje,s; (3GdWQGhfI,jhSa,s ((3GQHO (B((3GdGQOf(B) :s (3ecJHI GdcJGfi,s, 1987)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI (B.s
(3O(B. / (3LGHQ YUahQ ;s
Keywords: (3GdTYQ GdYQHis -- (3JGQjNs -- (3GdYUQ GdLGgdis; (3GdTYQ GdYQHis -- (3JGQjN hfbOs