Mastering the Craft: The Art of Document Sourcing Unveiled
The information for a report or a proposal is gathered from both primary and secondary sources, the primary source consists of firsthand information such as interviews and observations while the latter source is written documents such as articles, books, and web pages. The website is a vast resource of secondary information but you must be aware to put in the right keyword phrase to acquire the resource you are looking for, to be more accurate in your research, you can make use of the invisible web.
This is a storehouse of information, which popular search engines have no access to, such as libraries of universities, and online almanacs. To provide the best information, research varied sources before you conclude.