1. Kharab A., "A Numerical Solution of a Free Boundary Problem on the Unsaturated Flow of Liquids in Porous Media", Comp. & Maths. with Appls., Vol. 12A No 12 (1986), pp. 1193-1200.

2. Kharab A. and Guenther, R. B., "A Free Boundary Problem for Water Invading an Unsaturated Porous Media", Computing, Vol. 38 (1987), pp. 185-207.

3. Kharab A., "A Poiseuille Flow past a Permeable Hump", Comp. & Maths with Appls., Vol. 19, No.2 (1990), pp. 9-15.

4. Kharab A. and Guenther, R. B., "A Numerical Model of Water, Heat and Chemical Transport in Porous Media", Comp. & Maths. with Appls., Vol. 27,  No 2 (1994), pp. 55-64.

5. Kharab A.,  "Spreadsheet Solution to an Initial Value Problem Using the Runge-Kutta-Fehlberg Method", Comp. Appl. Engn. Edu., Vol. 2, No2 (1994), pp. 129-134.

6. Kharab A., "Use of Spreadsheet program in a two-dimensional Heat Conduction Problem", Computer Methods in Applied Mechanics and Engng, Vol. 122 (1995), pp. 173-181.  

7. Kharab, A., "A  Finite Difference Solution to a Two-dimensional Vibrating membrane Problem Using a Spreadsheet Program", Int. J. Advances in Engng. Software, Vol. 23 No 2 (1995), pp. 115-120.

8. Kharab A., "The use of a Spreadsheet Program to Solutions of Parabolic-Differential Equations using the Crank-Nicolson Method", Int. Journal of Math. Edu. in Sci. & Techn., Vol. 27, No 2 (1996), pp.261-271.  

9. Kharab, A., "Approximate Method for a two-dimensional Parabolic Free Boundary Problem", Computer Methods in Applied Mechanics and Engng, Vol. 129 (1996), pp. 305-310.

10. Kharab A. and Kharab, R., "Spreadsheet Solution of Hyperbolic Partial Differential Equations, IEEE Trans. Educ., Vol. 40, No. 1 (1997), pp. 1-8.

11. Kharab, A., “Numerical Approximation to a Moving Boundary Problem for the Sphere”, Computer & Chemical Engng., Vol. 21, No 6 (1997), pp. 559-562.

12. Kharab, A., "Spreadsheet Simulation of the Moving Boundary of the one-phase Stefan Problem", Computer Methods in Applied Mechanics and Engng., Vol. 145 (1997), pp. 217-225.

13. Kharab, A., “Use of Multiple Sheets for the Solution of a Three-dimensional Transient Heat Conduction Problem”, Comp. & Maths. with Appls., Vol. 34, No. 1 (1997), pp. 71-79.

14. Kharab, A., “Solution of the Two-dimensional Diffusion Equation Using an Advanced Spreadsheet Program”, Compt. Appls. Engng.  Ed.”,  Vol. 5, No. 4 (1997), 269-275.

15. Kharab, A., “An Approximate Method for the Solution of a Three-dimensional Free Boundary Problem arising in Hydraulics”, Comp. Meth. in Appl. Mech. Engng., Vol. 148 (1997), pp. 187-194.

16. Kharab, A., "Use of a Spreadsheet program for Diffusion of Oxygen in Absorbing Medium with a Moving Boundary", Int. J. Advances in Engng. Software, Vol 29, No. 1 (1998), pp. 69-79.

17. Kharab, A., “Spreadsheets Solve Boundary-Value Problems”, Chemical Engineering, July (1998), pp. 145-148.

18. Kharab, A. and Al-Garni, A., “Use of A Spreadsheet Program in Aerospace Plane Trajectory”, Int. J. of  Modeling and Simulation, IASTED, vol. 19, no. 3 (1999), pp. 220-225.

19. Kharab, A., “An Advanced Macro Spreadsheet Program for the Simplex Method”, Computers & Operations Research, Vol. 27:3 (2000), pp. 233-243.

20. Elgindi, M. B. and Kharab, A., “The Quadratic Method for computing the Eigenpairs of a Matrix”, Int. J. Computer Math., Vol. 73 (2000), pp. 517-530.

21. Kharab, A., "Spreadsheet Solution to a Two-dimensional Stefan Problem Using an Approximate Method", Heat Transfer Engng., Vol. 21 no 5 (2001), pp. 65-71.

22. Kharab, A., “Eigenpairs of Symmetric Matrices using the Quadratic method and the Method of Subdefinite Calculations”. Parallel Algorithms and Applications, Vol. 16 (2001), pp. 319-326,

23. Yamani, A and Kharab A, "Use of a Spreadsheet Program in Electromagnetics", IEEE Trans. on Edu, Vol. 44 No 3 (2001), pp. 292-297.

24. Kharab, A. and Kharab, R., “A New Method for Finding the Eigenpairs of Symmetric Interval Matrices”. Int. J. Pure and Appl. Math., Vol. 1, No. 4 (2002), pp. 417-429.

25. Kharab, A. and Kharab, R., “Numerical Investigation of the Penetration of a Rigid Body into the Soil”. Int. J. Pure and Appl. Math., Vol. 12, No. 3 (2004), pp. 255-264.

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