1. Al-Ghamdi, A. A. (2001). Evaluation of the construction equipment replacement policies of construction contractors in the Eastern Province of Saudi Arabia, Master Thesis, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
2. Ali, H. A. E. M., Al-Sulaihi, I. A., and Al-Gahtani, K. S. (2013). “Indicators for measuring performance of building construction companies in Kingdom of Saudi Arabia.” Journal of King Saud University-Engineering Sciences, Vol. 25, No. 2, pp. 125–134, DOI: 10.1016/j.jksues.2012.03.002 .
3. Almahmoud, E. S., Doloi, H. K., and Panuwatwanich, K. (2012). “Linking project health to project performance indicators: multiple case studies of construction project in Saudi Arabia.” International Journal of Project Management, Vol. 30, No. 3, pp. 296–307, DOI: 10.1016/j.ijproman.2011.07.001 .
4. Anbhule, Y. R. and Kumthekar, M. B. (2013). “3D equipment management system for highway construction projects: conceptual design.” IOSR Journal of Mechanical and Civil Engineering, Vol. 1, No. 1, pp. 01–03, retrieved at: http://iosrjournals.org/iosr-jmce/papers/sicete(civil)-volume1/1.pdf.
5. Arbuckle, J. L. (2011). IBM SPSS amoss 20 user’s guide, IBM Corporation, U.S.A.