But, seeing as you won't tell me anything, I have to use other sources.

It uses only sources and doesn't need to run the program.

The majority of light sources used at work are safe and no further action will be required.

The project is focused on how business executives use sources of financial information.

A serious historian, using written sources, is bound to pay more attention to those who wrote them.

The author uses mostly secondary sources and comes up with nothing particularly new.

Even so, it's wise to use public sources such as the Internet to research what's behind a "looks to good to be true"opportunity.

The number of sources being used so far goes up to a total of 60.

One of the sources used by the media are morgues.

The People knew how to use alternate sources for food if game became scarce.