reference

/ˈɹɛf.(ə)ɹəns/noun

The act of mentioning or directing attention to a source of information or a decision-maker.

Example sentence

“The article makes frequent reference to earlier studies on sleep.”

In job hunting a reference is also the person who vouches for you. 'With reference to' opens formal letters.

Related words

qualificationThe process of meeting the requirements for a job, position, or competition.applicantA person who formally asks for something, such as a job or a place at a school.credentialA document or digital record proving a person's status, qualifications, or rights.candidateSomeone trying to win an election or be chosen for a job or position.skillThe ability to do something well, usually gained through practice or training rather than something you are born with.recruitTo find and sign up new people for a job, team, organization, or the military.