(3cJGH GdGeGdi (B/ s - (3GdbGdi (B: (3GHh Ydi GSeGYjd Hf GdbGSe (B:s 901(3?(B-967(3?s ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH (B: s, 1975)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
(3GdecJHI JbJfi abW GdeLdO GdGhds
Keywords: (3GdGOH GdYQHis -- (3eLehYGJs