Ngewa, S. (2009). Africa Bible commentary series: 1 and 2 Timonthy and Titus. Zondervan..
Chicago Style (17th ed.) ZitazioaNgewa, Samuel. Africa Bible Commentary Series: 1 and 2 Timonthy and Titus. WordAlive: Zondervan., 2009.
MLA (9th ed.) ZitazioaNgewa, Samuel. Africa Bible Commentary Series: 1 and 2 Timonthy and Titus. Zondervan., 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.