- Capps, Charles. Ulimi. Nguvu ya Ubunifu. Tulsa, Oklahoma: Harrison House, 1976.
- Chapman, Gary. Lugha za Upendo za Mungu. Chicago, Illinois: Northfield Publishing, 2002.
- Chapman, Gary. Lugha Tano za Mapenzi. Chicago, Illinois: Moody Press, 1992.
- Chapman, Gary na Ross Campbell, MD Lugha za Mapenzi za Watoto. Chicago, Illinois: Moody Press, 1998.
- Chapman, Gary. Lugha za Mapenzi za Vijana. Chicago, Illinois: Northfield Publishing, 2000.
- Dargatz, Jan. 52 Njia Rahisi za Kujenga Kujithamini na Kujiamini kwa Mtoto Wako. Nashville, Tennessee: Thomas Nelson Publishers, 1991.
- Hagin, Kenneth. Kwa Nini Lugha? Tulsa, Oklahoma: Kanisa la Biblia la RHEMA, 1975.
- Rainey, Dennis na Barbara. Kujenga Kujithamini kwa Mwenzi Wako. Ventura, California: Gospel Light, 1989, 1993.