(3bQGAGJ ai GdSdhc GdJfXjei (B((3eY QDjI GSdGejI dHYV GdbQGQGJ (B) / s - (3MGeO GMeO QeVGf HOQs ([S.N] : (3OGQ GdfgVI GdYQHjI , s, 1994)
Keywords: (3GdGOGQIs; (3JfXje hGOGQIs; (3GdLGeYGJ hGdcdjGJs; (3GdGOGQI GdYdjGs; (3GdSdhc GdJfXjeis; (3gjFGJ GdJOQjSs