You can quote something from your primary source and use footnotes.
Use it as if you're trying to explain to someone what the main objects you used in an "experiment" were. Example.. Water and Oil were the primary sources.
Primary sources, secondary sources, and oral history.
primary sources and secondary sources.
They use primary and secondary sources
Primary Sources are created by people who actually experienced the event.
How about: 'Energy sources are essential for an industrial economy'
historians use primary soucres and secondary sources
The local market share is one of the primary sources of the competitive advantages that firms use to compete in the international market.
The local market share is one of the primary sources of the competitive advantages that firms use to compete in the international market.
no carnivores are not primary sources
to be happy
to be happy
historians use primary soucres and secondary sources