(3eYQcI GdfaW aj GjQGf (B/ s - (3GdJcQjJj, Sdje Wg, s (3Jhaj (B1990(3, s ((3HZOGO, GdYQGb (B: s (3efThQGJ GdHUQj (B951.s, 1951)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B[2]s
Keywords: (3UfGYI hJLGQI GdHJQhds -- (3GdYQGb(B.s; (3GdHJQhds -- (3LhGfH SjGSjIs -- (3GdYQGb(B.s; (3GdHJQhds -- (3GbJUGOjGJs -- (3GdYQGb(B.s