(3bVGA GdCMOGK (B:s (3OQGSI ebGQfI (B/s - (3fhQ GdOjf gfOGhjs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1991)
. 269-263 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3bVGA GdCMOGKs