(3GdfXGe GdbGfhfj dYbO GdJhQjO GdGOGQj (B: s (3OQGSI ebGQfI (B/ s - (3GSeGYjd, gGfj YHO GdQMef, s ((3GdGScfOQjI (B[(3eUQ(B] : s (3OGQ GdLGeYI GdLOjOI, s, 2012)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B1511-1551.s
(3GdfU HGddZI GdYQHjI ; hjJVef eSJNdUGJ HGddZI GdYQHjI hGdGfLdjRjI(B.s
Keywords: (3GdYbhO GdGOGQjIs -- (3bhGfjf hJTQjYGJs -- (3eUQ(B.s; (3GdbGfhf GdGOGQjs -- (3eUQ(B.s