(3VeGfGJ GdeJge aj GdOYhi GdLRGFjI NdGd eQMdI GdJMbjb GdGHJOGFj (B:s (3OQGSI ebGQfI (B/s - (3Nhjf, MSf HTjJs ((3YeGf, GdCQOf (B:s (3ecJHI OGQ GdKbGaI ddfTQ hGdJhRjY,s, 1998)
(3HHdjhLQGajI (B: (3UaMI (B213-216.s
Keywords: (3GdJMbjb GdLfGFjs -- (3GdCQOfs; (3VeGfGJ GdeJges -- (3bhGfjf hJTQjYGJs -- (3GdCQOfs; (3GdOaGY Yf GdeJges -- (3bhGfjf hJTQjYGJs -- (3GdCQOfs; (3bGfhf GdELQGAGJ GdLfGFjIs -- (3GdCQOfs