Presentation Special Topic Science Of Persuasion – YouTube 来自 Stephen|已发表 2015-05-22 Science Of Persuasion – YouTube.
已发表 2015-04-07 200 Years Of U.S. Immigration And Anger About Immigration, In A Beautiful Visualization 200 Years Of U.S. Immi […]
已发表 2013-03-23 Number of Christians Rises, But Their Share of World Population Stays Stable There are 2.18 billion […]
