It is important that you take the time to write your summer employees strong letters of recommendation. (thebalance.com)
He gained both research and teaching experience, won strong letters in both areas, and went on to a tenure - track appointment at one of the nation's best liberal arts colleges. (sciencemag.org)
It's always a good idea to have three strong letters of recommendation (or reference) on hand at all times. (thebalance.com)