This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Bin Liu
Jinshan College,
Fujian Agriculture and Forestry University,
College of Management & College of Tourism,
Fujian Agriculture and Forestry University, FuzhouFujian, China
Zhongbin Li
College of Management & College of Tourism,
Fujian Agriculture and Forestry University, FuzhouFujian, China