(3GdGfUGa ai eSGFd GdNdGa Hjf GdfMhjI (B: (3GdHUQjI hGdchajI (B/ s - (3ceGd GdOjf GHi GdHQcGJ YHOGdQMefs; (3GHf eMeO Hf GHi SYjO GdGfHGQis ([S.N] : (3GdecJHI GdYUQjI ddfTQ hGdJhRjY , s, 1987)
Keywords: (3GdfMhs; (3GddZI GdYQHjIs