(3GHfjI GdGaYGd OQGSI dZhjI bQGfjI (B/ s - (3fLGI YHOGdYXje Gdchais ([S.N] : (3OGQ GdKbGaI ddfTQ hGdJhRjY , s, 1989)
Keywords: (3GdfMhs; (3GddZI GdYQHjIs; (3GdGaYGds; (3GdbQGfs