(3JjGQGJ GdacQ GdaQfSi GdeYGUQ (B/ s - (3UGdM, QLGA jGbhJ,s ((3GdbGgQI (B((3eUQ(B) :s (3GdgjFI GdYGeI dTFhf GdeWGHY GdGejQjI,s, 1989)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
(3O(B. / (3LGHQ YUahQ ;s
Keywords: (3GdadSaI GdZQHjIs; (3GdadSaI GdaQfSjIs