(3GdcQGJjg (B- (3GdehShYI GdQjGVjI GdejSQI (B( 8 )s - (3YHO GdaJGM(B. (3ESeGYjds ((3OGQ GdcJGH GdeUQjs (3GdbGgQIs, 1990)
Keywords: (3GdcQGJjgs; (3GdQjGVI s