(3MjGI YKeGf (B/ s - (3TdHj, eMehO, s ((3HjQhJ, dHfGf (B: s (3OGQ GdLjd, (B407 (3g`(B. = 1987.s, 1987)
Keywords: (3YKeGf Hf YaGf Hf GHj GdYGU Hf GejI, s -- 47 (3bHd GdgLQI(B-35 (3gLQj(B.s