Guo, Lianhong
Li, Yuanfei
Hou, Chunjuan
Funding for this research was provided by:
Huashang College Guangdong University of Finance and Economics (2019HSDS22)
Article History
Received: 2 August 2019
Accepted: 4 November 2019
First Online: 14 November 2019
Competing interests
: The authors declare that they have no competing interests.