(3JUeje GdcJGH hGfJGLg (B/ s - (3HdjOjf, afSfJs; (3eMSf TGcQs; (3eGgQ eMeO bWHs ([S.N] : (3OGQ GdfTQ ddLGeYGJ GdeUQjI , s, 1989)
Keywords: (3GdhQbs; (3GdWHGYIs; (3GdNW GdYQHis; (3GdcJGHs