Is there any where I can obtain some articles

I think you should call the police (not 911) but the local number and ask if there is any resource in your region for women or children who get abused. Go there and talk to them, they have experience and document who can help you. I think you will get a lot more if you talk to a local resource about sexual abuse.

It's legally mandatory to report this to the authority, it is in facts criminal not to report it :
http://www.smith-lawfirm.com/mandatory_reporting.htm

If you still want some online resource for it :

List of step by step of what you can do to help :
http://www.burstingthebubble.com/steps.htm

Violence Against Women Online Resources (sexual assault, child custody and protection) they have many document you can read on there website.
http://www.vaw.umn.edu/

http://www.teenrelationships.org/