Search Efforts

Where can I find professional journal on Global stratification? I search n I only find abstract only. Help.?

I need for my research. I find bunches of article on Google. But my professor said it must be Professional Journal. Thanks in advance.

Public Comments

1. Did you find this one: http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=Retrieve&db=PubMed&list_uids=16457924&dopt=Citation
2. try searching in GOOGLE book section; make certain to cite properly if your work requires documentation http://books.google.com/bkshp?tab=wp&hl=en&ie=UTF-8