Use PHP to view the correct Ads. Author Advertising

Hello guys,
I need help for my site. This question is very important for me, and probably it will be for the others who are using wordpress. In my site there are several authors that post daily articles. I’m using the revenue sharing for adsense, and I’m using this plugin: author of the advertising pro.

I need something more effective and direct way, that it can be integrated within the wordpress code, to control of who is a certain Article, and From there, only make it appear his personal advertising.
Let me explain.

The author of an article collects 100% of the profits with the article. His articles appear only in its advertising.

What I would like is to make a code to check who is an article and bring up the publicity of the author of that article. So there isn’t a banner rotation.

I want to change the method using PHP (or other method), but since I’m a beginner with this kind of language I require your help.
Does anyone know how to do?