(3GdJMQjGJ cGSGS dGUOGQ bQGQGJ GdVHW GdGOGQj hGdQbGHI GdbVGFjI YdjgG (B/ s - (3SdjeGf, GTQa GHQGgje eUWai, s ([(3GdbGgQI, eUQ(B] : s (3OGQ GdfgVI (B((3ddWHY hGdfTQ hGdJhRjY(B)(3, s, 2008)
(3GdeMJhjGJ (B: (3GdbSe (B1. s (3GdfXGe GdbGfhfj ddJMQjGJ ; GdbSe (B2. s (3GdQbGHI GdbVGFjI Ydi GdJMQjGJ(B.s
2 (3GbSGe HHdjhLQGajI aj (B1 (3eLdO eGOj(B.s
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbVGA GdGOGQjs -- (3eUQ(B.s; (3GdVHW GdGOGQjs -- (3eUQ(B.s; (3GdbGfhf GdGOGQjs -- (3eUQ(B.s; (3GdQbGHI GdbVGFjIs -- (3eUQ(B.s