Serious sources to answer ?'s for a college social issues paper on drug use/abuse-HELP!?

Question

I need to address these questions, which make up the scope of my paper, while researching drug use/abuse:
1-What are the various means by which individuals obtain their drugs of choice
2-How does the level of street drug use/abuse compare to the level of pharmeceutical drug use/abuse
3-What are some forms of psychological damage to a drug dependent individual
4-In what ways do drug dependence effect marriage
5-How often do marriages collapse vs. survive due to one or both spouses being drug dependent
6-In what ways and to what degree are children of drug dependent parents affected by these addictions
7-How does a family affected by drug use/uabuse function compared to a family not touched by this epidemic
8-What is the extent of the damages to society as a result of drug use/abuse
9-What do recovery statistics look like for drug dependent individuals and their families
I have quite a bit of knowledge in this area anyway, but I need to find more sources that specifically adres

Answer 1

look here http://www.socialworkers.org/research/naswResearch/substanceAbuse/default.asp

Answer 2

There are thousands of peer-reviewed journal articles that deal with these questions. Search the journal databases that you can access through your college library's website.