(3GaI GdeNOQGJ hcjajI eYGdLI GdGOeGf (B/s - (3RjO, eMeO, s ((3HjQhJ, dHfGf (B: s (3OGQ GdGfOdS, (B409 (3g` (B. = 1988.s, 1988)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B156-157.s
Keywords: (3GOeGf GdeNOQGJ(B.s; (3ecGaMI GdeNOQGJ(B.s