(3GdQGi GdYGe hSjchdhLjG GdSjGSI (B/ s - (3fGgO QeRis ([S.N] : (3ecJHI GdGfLdhGdeUQjI , s, 1991)
Keywords: (3GdGfJNGHGJs; (3Yde GdfaSs; (3GdQGi GdYGes; (3Yde GdfaS GdSjGSis; (3bjGS GdQCi GdYGes