(3GdCfJNGHGJ GdCeQjcjI hCReI GdTQb GdChSW s - (3SYO GdOjf EHQGgje s ((3eUQ (B:s (3eQcR GdOQGSGJ GdSjGSjI hGdGSJQGJjLjI HGdGgQGe (B,s, 1976)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3SjGSGJ CeQjcjIs; (3GdGfJNGHGJ GdGeQjcjI s; (3CReGJ GdTQb GdChSWs