One promising new source is overseas investors, particularly the Japanese.

The civilian clerk on duty didn't seem like a promising source of confidential information.

Here, thought Robin, lay a promising source of information.

You look like the most promising potential source I've scanned so far.

The city's labor leaders view limousine drivers as one of the most promising sources for new union members.

Agriculture remains the base of Afghanistan's economy and its most promising source of new jobs.

It is also the most promising untapped source of oil in North America.

Other Fields A more promising source of candidates, he said, would probably be business and government.

None of these concerns need rule out this promising source of power.

Solar and wind power are promising sources of renewable energy.