For a global paper I have to take 20 notecards my topic before I write it. I am looking for online sources that are either professional or they are endorsed by a professor. My paper deals with the adaptations humans made in order to survive based on the geography/ the effects of geography. These adaptations can be either natural or man-made (i.e. the mountains in greece provided a barrier). The societies I am writing about are ancient Greece, ancient China, and ancient India. Thanks

http://scholar.google.com/schhp?sourceid=navclient&hl=en

You can research above for scholarly articles. In addition you should find out if you have access to any research databases your school or local library have subscriptions to. EBSCOHost is the best for the project you have named.

Who Was Affected By the Historical event In The medieval time

To find online sources that are professional or endorsed by professors, you can follow these steps:

1. Start by searching in academic databases and scholarly search engines. These platforms often contain peer-reviewed and credible sources. Some popular databases you can use include JSTOR, Academic Search Complete, and ProQuest. Access to these databases might be available through your school or local library's website.

2. When searching in these databases, use keywords related to your topic, such as "human adaptations," "geography effects," "ancient Greece," "ancient China," and "ancient India." Combining these keywords with phrases like "scholarly articles" or "academic sources" will help you refine your search.

3. Pay attention to the publication date of the articles to ensure you are using the most recent and relevant sources. This will generally be available in the search results or within the article itself.

4. While searching, look for sources written by reputable authors or institutions. Check their affiliations, credentials, and any indication of their expertise in the field.

5. It is also valuable to consult books, especially those written by respected historians or scholars specializing in ancient Greece, ancient China, and ancient India. Online libraries such as Google Books or Open Library may offer a digital copy of relevant texts.

6. Another useful approach is exploring academic websites of universities or research institutions. Many of them publish articles, reports, and papers related to various topics, and these are often reliable sources. You can use search engines to find these websites by typing in the name of the institution along with keywords related to your topic.

7. If you find a potentially valuable online source but are unsure of its credibility, check if it is endorsed by a professor or academic institution. This information is often provided on the website itself or in the author's bio.

Remember to critically evaluate the sources you find. When selecting your 20 notecards, choose those that provide diverse perspectives and support your argument effectively. Be sure to take notes on the key points, supporting evidence, and any relevant quotes from each source.