Well, I am sorry to say that you have set out a bit of a task for yourself. There is a massive bibliography on the topic, but the vast majority is concentrated on the Imperial period, after Augustus made a few fundamental changes to the administration that really created the Roman Empire as we tend to think of it. The issue, ultimately, is that the formation of a true Roman imperial society in the provinces was really an Imperial phenomenon, and so not only is most of the interest post-Republic, but also most of the evidence.

Now you aren't completely out of luck, and there is definitely enough to fill a five page paper. Italy is probably the main exception to this, and if you look for works by Nic Terrenato (such as the recent Articulating local cultures: Power and identity under the expanding Roman Republic--warning, very dense work) you'll find discussion on your period. Also the Vesuvian cities, Zanker has a section in Pompeii about the Republican period. Roman Roth's Styling Romanisation is way more dense than you need, but the first couple chapters give a very good contour of the arguments you can use.

In a more general sense, I would suggest you look at Greg Woolf's Rome: An Empire's Story, which is a good introductory work.