Geoffrey William Bromiley.χρηστός, χρηστότης, χρηστεύομαι, χρηστολογία // Theological Dictionary of the New Testament / Edited by Gerhard Kittel, Geoffrey William Bromiley, Gerhard Friedrich, translated by Geoffrey William Bromiley. — Wm. B. Eerdmans Publishing, 1964. — Vol. 9. — P. 491. — 696 p. — (Theological Dictionary of the New Testament).
Geoffrey William Bromiley.χρηστός, χρηστότης, χρηστεύομαι, χρηστολογία // Theological Dictionary of the New Testament / Edited by Gerhard Kittel, Geoffrey William Bromiley, Gerhard Friedrich, translated by Geoffrey William Bromiley. — Wm. B. Eerdmans Publishing, 1964. — Vol. 9. — P. 492. — 696 p. — (Theological Dictionary of the New Testament).
Eric L. Titus.Did Paul Write I Corinthians 13?(англ.) // Journal of Bible and Religion. — Oxford University Press, 1959. — Vol. 27. — № 4. — P. 299—302.