(3Yde GdGbJUGO (B:s ((3ddaQbI GdChdj (B) /s - (3CMeO LGeYs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1988)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdeGdjI GdYGeI hGdJTQjY GdVQjHjs