(3dSGf GdYQH(B/(3GdeLdO GdKGfj (B((3J(B-(3K(B-(3L(B-(3M(B) : s (3eYLe dZhj LGeY (B/ s (b)
Keywords: (3GddZI GdYQHjI, GdeYGLe, abg GddZIs