(3Gdbhi GdSjGSjI h GdJfejI (B:s (3OQGSI aj Yde GdGLJeGY GdSjGSj (B/s - (3ReGe, fhQ GdOjfs ((3GdLRGFQ (B:s (3OjhGf GdeWHhYGJ GdLGeYjI ,s, 2007)
Keywords: (3GdYdhe GdSjGSjIs; (3Yde GdGLJeGYs; (3Yde GdELJeGY GdSjGSjs