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 | This help page is a how-to guide. It explains concepts or processes used by the Wikipedia community. It is not one of Wikipedia's policies or guidelines, and may reflect varying levels of consensus. |
 | This page in a nutshell: About finding sources to support a specific Wikipedia article. For finding a source you have already identified, see Wikipedia:Find your source. |
Independent and reliable sources are vital for creating encyclopedia articles. Reliable sources allow editors to verify that claims in an article are accurate. The higher the quality of the source for the statement it backs up, the more likely that statement is to be accurate. Independent sources help editors to write neutrally and to prove that the subject has received note. Wherever possible, editors should aim to use sources that are independent and highly reliable for the subjects they write about.
Many of the best sources are not available online, or are only available under subscription. For example, many books are not available online at all, and subscription to academic databases such as JSTOR can be fairly expensive. However, it is possible to use the open web to find many good sources to use in writing encyclopedia articles. Examples of such sources are news stories from newspapers with a reputation for accuracy, books which have previews on digital libraries, and academic papers which are available open access in open archives.