(3GdGReI GdSjGSjI hGdOSJhQjI ai eUQ (B1987_ 1990 / s - (3eMeO Sdje GdYhGs ([S.N] : (3GdRgQGA ddGYdGe GdYQHi , s, 1991)
Keywords: (3eUQs; (3GdGMhGd GdSjGSjIs; (3GdGfJNGHGJs; (3JRhjQs; (3bGfhf GdGfJNGHGJs