(3bVGjG YGdejI s - (3eMehO GdTQbGhjs ((3GdbGgQI (B:s (3OGQ GdbGgQI (B,s, 1990)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3Ydhe SjGSjIs