(3CSQGQ GdCHQGLs (3GdYQHjI(B-(3GdZQHjI(B-(3GdUjfjIs - (3EHQGgje,RjfHs ((3GdbGgQIs (3ecJHI GdfGaPIs, 2011)
(3GdeMJhjGJ (B: (3a(B1(3NUGFU GdCHQGL h CfhGYgG hCbSGe GdYTQjI(B--(3a(B2(3CSQGQ GdCHQGL(B--(3a(B3(3GdCHQGL h GdMH(B--(3a(B4(3GdCSHhY Gdadci(B--(3a(B5(3QjLje GdCHQGLs
7
Keywords: (3GdJfLes; (3Gdadcs