RT Journal T1 A1 PB Journal of Guizhou University of Finance and Economics FD 2015-07-15 YR 2015 JF Journal of Guizhou University of Finance and Economics JO Journal of Guizhou University of Finance and Economics VO 33 IS 04 SP 103 DO K1 LK {https://gcxb.gufe.edu.cn/EN/article/article_8855.shtml}