[Liu, Xia] Guangdong Univ Foreign Studies, Coll Continuing Educ, Guangzhou, Guangdong, Peoples R China.
[Liu, Xia] Guangdong Univ Foreign Studies, Open Coll, Guangzhou, Guangdong, Peoples R China.
[Liu, Xia] Hunan Agr Univ, Sci Coll, Changsha, Hunan, Peoples R China.
[Zhou, Tao] South China Normal Univ, Sch Econ & Managment, Guangzhou, Guangdong, Peoples R China.
[Shi, Haiping] Guangdong Construct Polytech, Modern Business & Management Dept, Guangzhou, Guangdong, Peoples R China.