Answer :
The answer for this question is: primary source document
Primary source of document is an object that involved and created by the time of the events. Another examples for these type of documents are a personal letter from the president to his General and the documents that written during the discussion to decide the purchase.
Primary source of document is an object that involved and created by the time of the events. Another examples for these type of documents are a personal letter from the president to his General and the documents that written during the discussion to decide the purchase.