All applicants have the option to identify themselves as being referred for the role and, if so, to enter the name of the person that referred them.
You can easily find referred applicants by using the search functionality in the Job Manager. simply start to type "referral" in the search box and all referred applicants will be displayed. Alternatively sort the applicants by the "source" column.
When viewing the Candidate Profile of a referred applicant, this is indicated after their name. Moving your cursor over the "referred candidate" text will display the name of the person that referred the applicant.
Please note that this name is supplied by the applicant and so it is advisable to confirm it is an actual referral if you are unsure.