(3GdTjNjI (B: s (3fTGJgG hJWhQgG heUGOQ OQGSJgG (B/ s - (3Gd GdWGdbGfj, GdSjO eMeO MSf, s ((3HjQhJ, dHfGf (B: s (3GdGeGd ddeWHhYGJ, (B420 (3g`(B. = 1999.s, 1999)
(3jJVef edGMb(B.s
(3jJVef EQLGYGJ HHdjhLQGajI (B: (3UaMI (B351-374.s
Keywords: (3GdTjNjI (B((3aQbI GSdGejI(B).s