(3GdfXGe GdYQHj dVeGf GdGSJKeGQ VO GdeNGWQ ZjQ GdJLGQjI (B/s - (3UGOb, gTGe Ydjs ((3GdEScfOQjI, eUQ (B: s (3efTCI GdeYGQa ;s, 1977)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdGSJKeGQ s -- (3bhGfjf hJTQjYGJs -- (3GdHdGO GdYQHjIs