1- Darcy, J.D., Ward, A.D., Fausey, N.R, and Bair, E.S., 1990. A comparison of four field methods for measuring saturated hydraulic conductivity. Transaction of ASAE, 33, pp. 1925-1931.
2- Elrick, D.E., Reynolds, W.D. and Tan, K.A., 1989. Hydraulic conductivity measurements in the unsaturated zone using improved well analyses. Ground Water Monitoring Review. 9, pp. 184-193.
3- Kashkuli, H., 1992. Simultaneous determination of soil hydraulic properties above the water table using Gulph method. Proceeding of 3th Iranian Soil Congress, Soil Science Association of Iran, Tehran, Iran. (In Persian).
4- Kashkuli, H. and Mashal, M., 1995. Comparison of the methods of field measurements of hydraulic conductivity above the water table with the Guelph method in two different soil types in Khuzestan province. The Scientific Journal of Agriculture, 18(1 and 2), pp. 1-24. (In Persian).
5- Kashkuli, H., Mirbehersee, H. and Nori-Emamzadehee, M., 2001. Using single-depth and Multi-depth analyzes of Guelph permeameter method to determine hydraulic conductivity and α coefficient and comparing them with auger hole method. Journal of Soil Science Association of Iran, Selective papers of 7th Iranian Soil Congress, pp. 82-84. (In Persian).
6-Lee D.M., Reynolds, W.D., Elrick, D.E. and Clothier, B.E., 1985. A comparison of three field methods for measuring saturated hydraulic conductivity. Soil Science, 65, pp. 563-573.
7-Mohanty. B.P., Kanwer, R.S. and Everts, C.J., 1994. Comparison of saturated hydraulic conductivity measurement methods for a glacial-till. Soil Science Society American Journal, 58, pp. 672-677.
8- Mokhtaran, R., 2004, Evaluation of single-depth analyzes Guelph permeameter method for determination of saturated hydraulic conductivity above the water table in a medium texture soil. Master's Thesis. Shahid Chamaran University of Ahvaz, Ahvaz, Iran, 121 p. (In Persian).
9-Philip, J.R., 1987. The quasilinear analysis, the scattering analogue and other aspects of infiltration and seepage. In Y.S. For (Ed.), Infiltration Development and Application, Water Resources Research Center, Honolulu. pp. 1-27.
10-Reynolds, W.D., Elrick, D.E. and Clothier B.E., 1985. The constant head well permeameter Effect on unsaturated flow. Soil Science, 139(2), pp. 172-180.
11-Reynolds, W.D. and Elrick D.E., 1985. In situ measurement of field saturated hydraulic conductivity sorptivity, parameter using Guelph permeameter. Soil Science, 140(4), pp. 292-302.
12-Reynolds, W.D., Vieira, S.R. and Topp G.C., 1992. An assessment of the single-head analysis for the constant head well permeameter. Canadian Journal of Soil Science, 72, pp. 489-501.
13-Reynolds, W.D. and Zcbehuk, W.D., 1996. Hydraulic conductivity in a clay soil two measurement techniques and spatial characterization. Soil Science Society American Journal, 60, pp. 1679-1685.
14-Stephens, D.B., Lamert, K. and Watson, D., 1987. Regression models for hydraulic conductivity and field test of the borehole permeameter. Water Resource Research, 23, pp. 2207-2214.
15-Vieira, S.R., Reynolds, W.D., and Topp G.C. 1988. Spatial variability of hydraulic properties in a highly structured clay soil. Proceeding Symprian Validation of Flow and Transport Models for Unsaturated Zone, Ruidoso, NM.
16-Zanger, C.N., 1953. Theory and problems of water percolations. Engineering Monograph No. 8, Bur. of Reclamation, U.S. Dep. of Interior, 76 p.
17-Zhang, Z.F., Groenevelt, P.H., and Grayw, P., 1988. The well shape factor for the measurement of soil hydraulic properties using the Guelph permeameter. Soil & Tillage Research 49, pp. 219-221.