noun
EXAMPLES FROM CORPUS
▪
For these reasons it is often difficult in many cases to trace a single primary source .
▪
Moreover, they saw their primary source of leverage-financial rewards-as less effective with the big producer.
▪
Playing basketball has never been his primary source of income.
▪
The radio is the primary source of information and link to the outside world.
▪
The research involves the use of primary source materials in national and local archives.
▪
Tobacco has collapsed as a primary source of funds.