(3GdacQ GdYQHj (B: s (3LPhQg hKeGQg (B/ s - (3GdgGTej, eMeO, s ((3GdchjJ (B: s (3ecJHI GdadGM, (B398 (3g`(B. = 1978.s, 1978)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B143-147.s
Keywords: (3GdadSaI GdGSdGejI(B.s; (3GdadSaI GdYQHjIs -- (3JGQjN(B.s; (3GdacQ GdYQHj(B.s