Article Submission

I think there is not any restriction for the links in article submission. You can put as according to your requirement.

Some of the sites have their rules posted.

minimum two

its depends upon the policy of the site how much they are allowing..

I think there is no limit for it.

Mostly two links allowed in article submission

Various article sites have different guidelines but it is good if you use max. 2 links in article with different URL from Search Engine point of view.

I think in 2 words 2 links are enough,
This the better way that you can do....

There is restriction Article submission. you are giving only Three link will be submit in Article submission.