(3NjQi GdgfOGhi(B?: (3MjGJg hTYQg (B/ s - (3jhSa YRGdOjfs ([S.N] : (3eYgO GdOQGSGJ GdYQHjI GdYGdjI , s, 1964)
Keywords: (3GdJQGLes; (3GdGOHGAs