1 Abedi, M. J., and Talibudeen, O. (1974). The calcareous soils of azerbaijan. i catena development related to the distribution and surface properties of soil carbonate. Journal of Soil Science, 25(3): 357-372.
2-Al-Hadidi, A. A. P. (2000). Evaluation of the water quality of some springs and their effect on the soil chemical properties in Nineveh Governorate. Master Thesis - College of Agriculture and Forestry - University of Mosul.
3-AL-Kaysi, S. C. (1983). Physical and chemical characterization of carbonate minerals in Iraqi soils. Ph.D. Thesis, Dept. of Soil Science, Newcastle Upon Tyne, U.K.
4-Ahmed, M. Ibrahim, M. M. M. Suleiman, H. Nasser, Dafalla, M. S., and Ibrahim, S. I. (2017). Intrinsic Problems in Determination of Soil Texture in Calcareous Soils of Arid Zones. International Journal of Scientific and Technology Research, 6(8): 76-80.
5-Al-Saedy, N. Hassan, S. Abdul-Razaq, I. and Al-Kaysi, S. (2003). Physical distribution of carbonate minerals and its effect on particle size distribution of soils. Iraqi Journal Agriculture, 8: 146-153.
6-Asgari Hafshejani, N. and Jafar, S. (2017). The study of particle size distribution of calcium carbonate and its effects on some soil properties in Khuzestan Province. Iran Agricultural Research, 36(2): 71-80.
7-Deb, B. C. and Chadha, S. P. (1979). Mechanical analysis of calcareous soil and distribution of different calcium carbonate in various fractions. Indian journal of Soil Science, 18: 227-232.
8-Doner, H. E. and Grossl, P. R. (2002). Carbonates and evaporates. pp. 199-228. In J.B. Dixon D and Schulze D G. Soil mineralogy with environmental application. SSSA Book Ser. 7. SSSA. Madison. WI.
9-FAO. (2016). FAO Soils Portal: Management of Calcareous Soils (accessed 01.04.16).
10-Finkl, Jr. C.W. and Fairbridge, R.W. (1979). Paleogeographic evolution of a rifted cratonic margin: SW Australia. Palaeogeography, Palaeoclimatology, Palaeoecology, 26: 221-252.
11-Francis, R. E. and Aguilar, R. (1995). Calcium-carbonate effects on soil textural class in semiarid wildland soils. Arid Soil Research and Rehabilitation, 9: 155-165.
12-Gee, G. W. and Bauder, J. W. (1986). Particle size analysis. In: A. Klute (Ed.). Method of soil analysis. Part, 3, 383-411.
13-Gee, W. G. and Or, D. (2002). Particle-Size Analysis. pp. 255–293. In: Dane, J. and G.C. Topp, (eds.). Methods of Soil Analysis. Book Series: 5. Part 4. Soil Science Society of America. USA.
14-Hussein, M. K. Bushra, A J. Aljawasim, B. D. Al-khaikani, S. A. M. and Mohsen, A. A. (2020). Tillers patterns of bread wheat and grain yield productivity under abiotic stress. Plant Archives, 20(2): 2020. E-ISSN: 2581-6063 (online), ISSN: 0972-5210.
15-Karim, T. H. and Sulaiman, M. S. (1987). Change in some physical properties of some calcareous soils in the north part of Iraq as affected by decalcification. Iraqi Journal of Agriculture Science ZANKO.5:83-93.
16-Kassim, J. K. (2013). Methods for estimation of calcium carbonate in soils from Iraq. International Journal of Environment, 1(1): 9-19.
17-Kishchuk, B. E. (2000). Calcareous soil, their properties and potential limitation of conifer growth in southeastern British Columbia and western Alberta: a literature review. Canadian Forest Service Publications. Inf. Rep. NOR-X370.
18-Kroetsch, D. and Wang, C. (2006). Particle size distribution. In: Carter, M.R., Gregorich, E.G. (Eds.), Soil Sampling and Methods of Analysis. CRC Press Taylor and Francis, Boca Raton, FL, 713–725.
19-Loeppert, R. and Suarez, D. (1996). Carbonate and gypsum. In: D.I., Sparks, A. L. Page. F.A. Helmke, R.H. Loeppert, P.N. Soltanpour, M.A. Tabatabai, C.T. Johnson and M.E. Sumner, (eds.) Methods of Soil Analysis. Part 3 Chemical Methods. SSSA Special Publication No. 5. Madison. WI, 437-474.
20-Moore, T. J. Hartwing, R. C. and Loeppert, R. H. (1990). Steady-state procedure for determining the effective particle size distribution of soil carbonates. Soil Science Society of America Journal, 54: 55-59.
21-Richards, L. A. (1969). Diagnosis and improvement of saline and alkali soils. Agriculture Handbook 50. U.S. Salinity Laboratory, U.S. Department of Agriculture, Washington, D. C.
22-Richard, E. F. and Richard, A. (1995). Calcium carbonate effects on soil textural class in semi-arid wildl and soils. Arid Soil Research and Rehabilitation, 9 (2):155-165.
23-Sabbah, A. Gorji, M. Rafahi, H. and Shahooe, S. (1999). Relationship between soil erodibility factors (K in USLE) with aggregate stability in major soil series of Qazvin. Iranian Journal of Agriculture Science, 30: 596-609.
24-Soil survey staff. (2014). Key to soil taxonomy. A basic system of soil classification for making and interpreting soil surveys, (12st Ed.). Natural Resources Conservation Service, United States Department of Agriculture. Washington DC, USA, pp. 869.
25-Zhang, X. C. and Norton, L. D. (2002). Effect of exchangeable Mg on saturated hydraulic conductivity, disaggregation and clay dispersion of disturbed soils. Journal of Hydrology, 260: 194-205.