(3fGQjeGf(B: (3GNQ edcGJ eUQ (B/ s - (3SejQ aQGLs ([S.N] : (3OGQ SafcS ddWHGYI hGdfTQ hGdJhRjY , s, 1992)
Keywords: (3GdYUQ GdMOjKs; (3JGQjNs; (3KhQI (B23 (3jhdjh (B1952s; (3Gdedhc hGdMcGes; (3GdOhdI GdedcjIs; (3GdedcGJs