(3GdJYdje hfXQjGJg (B/ s - (3YGbd, aGNQ, s 1918-2010(3, s ((3HjQhJ, dHfGf (B: s (3OGQ GdYde ddedGjjf (B981.s, 1981)
(3jJVef EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJYdjes -- (3adSaI(B.s; (3GdJOQjSs -- (3adSaI(B.s; (3Yde GdfaS GdJQHhj(B.s