(3GdebOeI GdWddjI (B:s (3OQGSI OdGdjI (B/ s - (3GdYeQi, RjfH YHO GdYRjRs ((3GdbGgQI (B((3eUQ(B) :s (3OGQ GdKbGaI ddWHGYI hGdfTQ, s, 1988)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
(3O(B. (3LGHQ YUahQ ; ;s
Keywords: (3GdTYQ GdYQHis -- (3GdYUQ GdLGgdis