1. Abdel-Razek RH. Measuring and improving construction productivity using work measurement techniques. In: Proceedings of the international colloquium on structural eng., Ain Shams Univ., Egyptian Society of Engineers and Canadian Society of Civil Eng., Cairo, 14–21 April 1992. p. 445–56.
2. Productivity of Egyptian temporary labor in excavation work;Abdel-Razek;J Egypt Soc Eng,2004
3. Abdel-Razek RH, Hosny A. Improving Bricklayers’ productivity. In: Proceedings of the first Alexandria conference on structural and geotechnical eng., Alexandria University, Egypt, 1–3 Dec. 1990. p. 857–67.
4. Abdel-Razek RH, McCaffer R. Evaluating variability in labor productivity. In: Proceedings of the third international symposium, management engineering society, Cairo, Egypt, February 1990. p. 527–50.
5. Abd Elshakour H. Improving productivity of construction projects via improving on-site construction management. Master Thesis, Zagazig University, Construction Engineering Department, 1994.