Mehri,B . (2001). NUMERICAL SOLUTION OF LINEAR AND NON-LINER POISSON S EQUATION. Sharif Journal of Civil Engineering, vol. 17(NO. 20), 62-69.

Mehri,B . "NUMERICAL SOLUTION OF LINEAR AND NON-LINER POISSON S EQUATION", Sharif Journal of Civil Engineering, vol. 17, NO. 20, 2001, 62-69.

Mehri B. (2001). 'NUMERICAL SOLUTION OF LINEAR AND NON-LINER POISSON S EQUATION', Sharif Journal of Civil Engineering, vol. 17(NO. 20), pp. 62-69.

B Mehri, "NUMERICAL SOLUTION OF LINEAR AND NON-LINER POISSON S EQUATION," Sharif Journal of Civil Engineering, vol. 17 NO. 20 (2001): 62-69,

Mehri B. NUMERICAL SOLUTION OF LINEAR AND NON-LINER POISSON S EQUATION. Sharif Journal of Civil Engineering. 2001;vol. 17(NO. 20):62-69 (In Persian).