URLDate
Verified		Extra Software
Requirements
(if any)		Access
Conditions		Notes
http://dx.doi.org/10.4236/ajps.2016.73053DOI Link
http://file.scirp.org/Html/18-2602598_64967.htm04/04/2017
http://file.scirp.org/pdf/AJPS_2016032416084890.pdf04/04/2017PDF Reader