(3GdNRa GdJQcj (B/ s - (3eMeO , SYGO eGgQ s ((3eUQ (B: s (3GdLgGR GdeQcRj ddcJH GdLGeYjI hGdeOQSjI hGdhSGFd GdJYdjejI , s, 1977)
Keywords: (3GdNRa s