What is indicated as one of the sources of external recruitment?

The selection of websites as a source of external recruitment is correct because websites serve as platforms where organizations can advertise job openings to a broad audience. These can include company career pages, job boards, and various online platforms specifically designed for job seeking. Utilizing websites allows employers to reach potential candidates who might not be aware of job opportunities through traditional channels.

While other options like internal referrals and employee recommendations refer to utilizing current employees to find candidates, they are not considered external sources since they rely on the existing workforce. Direct mail campaigns, though they can target external candidates, are less common in today's digital age and may not be as efficient or impactful as online advertising methods. Therefore, websites are the most relevant and effective means of conducting external recruitment in the current job market.