(3GdbGfhf GdOSJhQj hGdfXe GdSjGSjI (B/ s - (3jcf, RgOj, s 1973-1907(3, s ((3HjQhJ (B[(3dHfGf(B] : s (3eWGHY LhRa Sdje Ujbdj (B956.s, 1956)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdOSJhQj(B.s; (3GdfXe GdSjGSjI(B.s