(3acQI GdVQhQI aj GdbGfhf GdOhdj GdYGe (B/s - (3aDGO, eUWai CMeO s ((3GdEScfOQjI, eUQ (B:s (3efTCI GdeYGQa,s, 1987)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdVQhQI (B((3bGfhf(B)s; (3GdbGfhf GdOhdj GdYGes