(3ehGba (B: s (3ebGdGJ (B/ s - (3GfjS efUhQs ((3GdbGgQI (B: s (3ecJHI eOHhdi , s, 1988)
Keywords: (3eUQs; (3GdGMhGd GdGLJeGYjIs; (3GdebGdGJ GdYQHjIs; (3GdebGdGJs