a. Refereed Journals:


1.       Farooq, S. and R.I. Allayla "Potential of Water Development in Saudi Arabia," Water International, Vol. 10 No.4 1985.


2.       Yazicigil, H., R.I. Allayla and R. de Jong "Numerical Modeling of the Dammam Aquifer in Eastern Saudi Arabia," Arabian Journal for Science & Engineering., Water Resources Edition for Arid & Semi Arid Regions V.11 No.4 1986.


3.       Allayla, R.I., "The Influence of the Unsaturated Zone on the Salt-Water Front in Unconfined Aquifers," The Arabian Journal for Science & Engineering, Water. Res. Edition for Arid & Semi Arid Regions V.11 No. 4 1986.


4.       Farooq, S. and R.I. Allayla "Study of Water Transportation to Saudi Arabia," Water Resources Division, ASCE 1986.


5.       Yazicigil, H., R.I. Allayla and R. de Jong, "Optimal Manage­ment of a Regional Aquifer in Eastern Saudi Arabia," Water Resour­ces Bulletin, V.23, No.3, 1987.


6.       Allayla, R. I., H. Yazicigil and R. de Jong "Numerical Modeling of Solute Transport in Dammam Aquifer," Water Resources Bulletin, V.24, No.1, 1988.


7.       de Jong, R., H. Yazicigil and R.I. Allayla  "Scenario Planning for Water Resources:  A Case Study," Water Interna­tional Journal, V.14, No.1, 1989.


8.       Al-Suwayyan, A. and R.I. Allayla  "Origin of the Saline Ground Water in Wadi Ar-Rumah, Saudi Arabia," Ground-Water Journal, V.27, No.4, 1989.


9.       Rasheeduddin, O., H. Yazicigil and R.I. Allayla "Numerical Modeling of Multiaquifer System in Eastern Saudi Arabia," Journal of Hydrology, V.107, 1989.


10.   de Jong, R., R.I. Allayla and W. Selen, Alternative Water Management Scenarios for Saudi Arabia," International Journal of Water Resources Development, V.5, 1989.


11.   Khondaker, A., M. Mohsen and R.I. Allayla "A Variational Finite Element Solution for the Navier-Stokes Equation," Hydrosoft Journal, Dec. 1990.


12.   Bhuiyan, M. A., R. I. Allayla, T. Hussain, A. Ishaq and M.F. Mohsen  "Solution of the Transport Equation by the Collocation Method in  Conjunction   with  the  adaptive Hermite Element Family," Water Resources Research Journal, Vol.26 No.11, Nov. 1990.


13.   Khondaker, A., R.I. Allayla and T. Hussain     "Ground- Water Contamination Studies - The State-of-the-Art," Critical Review in Env. Control Journal, Vol. 20, Issue 4, 1990.


14.   Allayla, R.I., R.L. de Jong and W.J. Selem, Alternative Strategies in Water Resources Development," KACST publication No. 50, 1991.


15.   Allayla, R.I., Niaz Mohammed and T. Husain,  "Experimental Study and Numerical Simulation of Denitrification in Saturated Porous Media,"  Water, Air and Soil Pollution Journal, Vol. 61, Feb. 1992.


16.   Allayla, R.I., R.L. de Jong and H. Yazicigil, "Optimum Development of Dammam Aquifer in the Eastern Province of Saudi Arabia," KACST publication No. 53, 1992.


17.   Farooq, S., A. K. Al-Yusef, R.I. Allayla and A. Ishaq "Tertiary Treatment via Pilot Scale Slow Sand Filtration," [Environmental Technology Vol. 15 pp 15-28 (1994)].


18. Mohammad, N., R.I. Allayla, G.F. Nakhla, S. Farooq and T. Hussain, “State-of-the-Art  Review of Bioremediation Studies”, Journal of Environmental Science & Health.


19. Ishaq, Achi M., Saada, N.M., Allayla, R.I., Sheikh, A.K. and Hussain, T., “Estimating Flood Quantities in Southwestern Part of Saudi Arabia”, Arabian Journal for Science and Engineering, AJSE, 1993


20. Khondaker, A. N., Al-Suwayyan, M. S., Mohammad, N., Allayla, R. I., "Tidal Effects on Transport of Contaminants in a Coastal Shallow Aquifer",  AJSE special issue on Water Resources in arid regions.


21. Farooq, S., A. Al-Yusef, R.I. Allayla and A. Ishaq “Tertiary Treatment of Sewage Effluent Via Pilot Scale Slow Sand Filtration” Journal of Environmental Technology V. 15, Issue 1 1994 (pp15-28)


22. Mohammed, N., Allayla, R. I., Nakhla, G.F., “Modeling Transport and Biodegradation of BTX Compounds in Saturated Sandy Soil”, Journal of Hazardous Materials, Vol. 54, pp.155-174, 1997


23. Alassar, R., H. Badr, A. Al-Rabeh and R.I. Allayla , “Unsteady viscous flow over prolate spheroids”, AJSE


24. Al-Assar, R., H.M. Badr, R. I. Allayla, “Viscous Flow Over a Sphere with Fluctuations in the Free Stream Velocity”, J Computational Mechanics 25 (2000)


25. Mohammed, N., and Allayla, R. I.  “Effect of Groundwater Velocity on Pilot Scale Bioremediation of Gasoline Contaminated Sandy Aquifers, J of Water and Soil Pollution 120: 315-329, June’ 2000 Netherlands.



b. Conferences:


1.       Bakr, A, R. I. Allayla, A.E. Dabbagh and A.G. Maadhah, "Importance of Applied Research in Developing Water Resources in Saudi Arabia" (in Arabic), Proceedings Ministry of Planning Seminar on Development of Water Resources and Uses in Saudi Arabia, Riyadh, March 8-10, 1982.

2.       Allayla, R. I. and R. de Jong  "Saline Intrusion Along the Gulf Coast," Proceedings of First Saudi Engineering Confer­ence, Jeddah, Saudi Arabia 1983.

3.       Allayla, R. I. "Theoretical Analysis of the Groundwater Contamination Problem," Proceedings of the Second Interna­tion­al Conference on Ground Water Quality Research, Stillwater, Oklahoma, USA, 1984.

4.       Farooq, S. and R. I. Allayla.  "Feasibility Study of Water Transportation of Fresh-Water to Saudi Arabia," Proceedings of Fifth Water Congress on Water Resources, Brussels, Belgium 1985.

5.       Khararjian, H., F. Mohsen, R. Siddiqi and R. I. Allayla,  "Theoretical and Experimental Evaluation of Single Activated Sludge," Proceedings of the Specialty Conference, ASCE, Boston, USA 1985.

6.       Allayla, R. I. "Numerical Modeling of Contaminants in the EOCENE Formation," Proceedings of American Water Resources Conference, Atlanta, Georgia, USA November 9, 1986.

7.       Allayla, R. I. "The Use of Predictive Models in Ground Water Contamination Problem, A Case Study” EOCENE Formation, Saudi Arabia," Proceedings of International Conference on Infiltration Development and Application, Honolulu, Hawaii, USA Jan'1987.

8.       Khondaker, A. N., M. F. Mohsen and R. I. Allayla, "A Varia­tional Approach to the Navier-Stokes Equation," Proceedings, ASCE Conference on Advancement in Aerodynamics, Fluid Mechanics and Hydraulics, U. of Minn. June 1986.

9.       Allayla, R. I.  “Evaluating  The Region’s Capabilities to Respond to and Clean up From a Major oil Spill” Pro-Active Crisis Management Conference, Dubai, UAE 1994

10.   Allayla, R. I., M. Rasheeduddin and W. A. Abderrahman, “Shallow Groundwater and Desert Greening in the Eastern Province of Saudi Arabia”, Joint Saudi-Japanese Workshop on Utilization and Conservation of Water and Soil for Desert Greening, sponsored by Petroleum Energy Center, Tokyo, Japan, and The Research Institute, KFUPM, Dhahran, Saudi Arabia Nov 1996.

11.   Al-Tawabini, B., M. Al-Suwaiyan and R. Allayla, “Remediation of Groundwater Contaminated With Phthalates By Advanced Oxidation Technology” Engineering Conference King Fahd University of Petroleum & Minerals, Dec 2002.