Well I am totally new to on line working!!please Guide??  

The source is the link to where the article can be found.

If someone clicks on that link it will take them back to it therefore it is the source.

Just like the source of a river. It is where the river originally starts.

So you are asking about the backlinks. If you publish an article in your site, blog or any other places, you need one or more backlinks for that article so that your article gets exposure in terms of search results and therefore in traffic too.

You can also insert links in your article if you intend to provide some additional source of information. But if your articles gets links from some other sources, then they are counted as votes. And that's why those links are called backlinks (meaning links back to your site).

I suggest you to note down the URL of your page (article). Then insert it in relevant pages like blogs, forums, etc. That's all. If you are not clear yet about the concept, No problem. Am Always happy to help.....

Hope this is what you meant.

umit, I think what you are asking is what you need to do for a new article to have a link, am I right?

When you write an article, publish it in your blog, if you don't already have a blog, make a free one. The URL of your blog will become it's link.