(3GdegdI GdGNjQI (B/ s - (3GTQa GdUHGZs; (3QGSHhJjf, aGdfJjfs ((3GdbGgQI (B: s (3GdeLdS GdGYdi ddKbGaI , s, 2000)
Keywords: (3GdbUU GdQhSjI GdeJQLeIs; (3GdGOH GdQhSi GdeJQLes