(3GdeOhfI GdLfGFjI (B:s (3aj TQM bGfhf GdYbhHGJ hGdELQGAGJ GdLfGFjI hGdbhGfjf GdecedI dgeG eY OQGSI ebGQfI dBQGA GdabI hGJLGgGJ GdbVGA(B.s (3GdLRA GdChd ,s (3GJLGQ (B- (3GSJFfGa (B/s - (3eMeO EHQGgje Ndjd s ({(3ecGf GdfTQ ZjQ eMOO (B}s {(3GdfGTQ ZjQ eMOO (B}s, 1958)
Keywords: (3bGfhf GdYbhHGJ (B- (3GdbSe GdYGes; (3GdbGfhf GdLfGFjs