1. Anderson, T. 2015. U.S. Judicial Decisions. Security Management. A publication of ASSIS International. USA.
2. Dennis. P. 1997. Quality, Safety and Environment: Synergy in the 21st Century: ASQC Quality Press. Wisconsin. USA.
3. Dossey, L. 1999. Prayer and the Healing Words: The Power of Practice of Medicine. Harper Paperbacks. USA.
4. Farah, J.V. 2009. “The Implications of the Second Vatican Council on historic American Catholic Architecture.” Unpublished dissertation. University of Pennsylvania. Pennsylvania. USA.
5. Fowode. 2007. “Church Building Collapse a Clarion Call for Duty Holder.” Safetyrecord.com. Nigeria. www.safetyrecord.com/columns/01/church-buildings-collapse-clarion-call-duty-holders.