Where can I find a few good articles about SMOKING on college campuses?

Do your articles need to come from scholarly sources, or
are popular media acceptable sources?  Either way, you can find the sources you need
with a good internet search, using Google or another search engine.  Your question
provided the search terms you need: smoking, college campuses.  If you put these terms
into the search box on Google or another search engine, many good articles, both
scholarly and popular, will come up.

The scholarly articles
usually require a subscription, but most of what you'll find is open and available. 
Here are a few good sources to help you:

"Campus
Smoking Bans? Some Say 'Lighten Up'"
http://www.time.com/time/magazine/article/0,9171,1945356,00.html

"Smoke
Free College Trend Growing"
http://articles.cnn.com/2007-11-12/health/hm.smokefree.campus_1_smoke-free-college-smoking-indoors-cancer-society?_s=PM:HEALTH

"Campuses
Adopt Anti-Smoking Policies"
http://www.braintrack.com/college-and-work-news/articles/campuses-adopt-anti-smoking-policies-11012501

You
will find many more applicable articles (including the subscription-only scholarly
pieces) using the search terms I've suggested.   I hope this
helps.