ykchen@nutc.edu.tw
rollrabbit@gmail.com
frchiu@ocu.edu.tw
rockytallen@gmail.com
© 2015 Yan-Kwang Chen, Yi-Ju Chen, Fei-Rung Chiu, Cheng-Yi Wang, published by IRENET - Society for Advancing Innovation and Research in EconomyThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.