(3GdcTGa Yf MbGFb GdJfRjd hYjhf GdCbGhjd ai hLhg GdJChjd (B:s (3GdLRA GdQGHY (B/s - (3GdReNTQi, CHi GdbGSe LGQG Gddg eMehO Hf YeQ GdNhGQReis ((3GdbGgQI (B:s (3OGQ GdacQ, s, 1977)
(3GdfU HGddZI GdYQHjIs
Keywords: (3fRhd GdbQBf s; (3GdTQjYI GdESdGejIs