(3GdJOQjH hJfejI GdehGQO GdHTQjI (B:s (3GdCSS hGdYedjGJ (B/s - (3YSGa, YHO GdeYWj eMeOs ((3YeGf, GdCQOf (B:s (3OGQ RgQGf ddfTQ hGdJhRjY,s, 2000)
(3HHdjhLQGajI (B: (3UaMI (B341-345.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3Gdbhi GdYGedIs -- (3JNWjWs; (3GdJOQjH GdEOGQjs; (3EOGQI GdCaQGOs