User: Summarise the ways an employer can find workers using the given text as a reference
Assistant: 1. Job listing in newspapers through classified advertising.
2. Posting Job listings online (Job Boards) .
3. Through Recruitment consultants who takes a commission from the employer to find, screen and select suitable candidates. 
4. By displaying a 'Help Wanted' sign in the establishment  near a window or door or on the reception.