(3JWhQ GdacQ GdSjGSj s - (3SHGjf , LhQL s ((3eUQ (B: s (3OGQ GdeYGQa (B,s, 1971)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3JWhQGJ SjGSjI s; (3GdSjGSjI GdYGeI s