(3GdHfjGJ GddSGfjI ai GdTYQ (B/s - (3djaf, Sehjd Q(B.s; (3eMeO, GdhGdis; (3NGdO, GdJhRGfis ((3GdeZQH (B:s (3efThQGJ GdMhGQ GdGcGOjeji,s, 1989)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
(3O(B. (3LGHQ YUahQ ;s
Keywords: (3GdTYQ s -- (3JGQjN hfbOs; (3GddZI GdYQHjIs -- (3GdfMhs