(3ef GdSO Gdi JhTci (B: s (3Gdfjd hGdHTQ ai eUQ GdGSGWjQ hGdhGbY (B/ s - (3GMeO GdSjO GdfLGQs ((3GdbGgQI (B: s (3eQcR GdOQGSGJ GdSjGSjI hGdGSJQGJjLjI (B- (3GdCgQGe , s, 1999)
Keywords: (3fgQ Gdfjds; (3GdSO GdYGdis; (3JhTcis