(3GdJQHjI GdSjGSjI aj GdHjJ GdeSde (B/s - (3GdTfJhJ, NGdO CMeOs ((3YeGf, GdCQOf (B:s (3OGQ GdHjGQb,s, 2000)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJQHjI GdESdGejI s -- (3ebGdGJ heMGVQGJs; (3GdESdGe hGdSjGSIs