Al-Sheikhly, RAL 2000. Relationship of the morphological features of mica minerals in potassium forms for some alluvial plain soils. MSc. Dissertation, College of Agriculture, University of Baghdad.
Abu -Shelbaya, MAD, Muhammad, AWS, Al-D, M, Al-Azim, MA & Husain MSM 2019 Land composition. Minia University, The Egyptian Arabic Republic.
Jaff, BO & Mohammed, A 2006, The nature of formation and presence of interstratified minerals and the factors affecting them in some Iraqi soils. PhD Dissertation, College of Agriculture, University of Baghdad, Iraq.
Al-Khafaji, QDI 2017, Study of the distribution of some microelements under different climatic conditions in selected soils from northern Iraq. Kirkuk University Journal of Agricultural Sciences, 9: 92-99.
Al-Shammari, AHD 2020, The effect of sedimentation sources on the content and properties of clay separated and mineral composition of some soils in Wasit and Maysan governorates. PhD Dissertation, Faculty of Agricultural Engineering Sciences, Department of Soil and Water Resources Sciences. Baghdad University, Iraq.
Al-Obaidi, BSO 2008, The nature of the presence of Palygorskite mineral in some Iraqi gypsum soils. PhD thesis. College of Agriculture. Baghdad University, Iraq.
Suleiman, HS, Omar AR & Kabba, R 2020, Study of the mineral composition of some soils of the Syrian island. The Arab Journal of Science and Research Publication. Journal of Agricultural, Environmental and Veterinary Sciences, 4(26-52): 807-818.
Khalil, EMI 2016, Fundamentals of Environmental Geology. College of Science. Zagazig University. The Egyptian Arabic Republic. Deposit number 11430.
Nassif, NS 2014, Changing the natural characteristics of the soil and groundwater of the landfill sites in the city of Baghdad. MSc. Dissertation, College of Education, Mustansiriya University, Iraq.
Day, PR 1965, Particle fractionation and particle-size analysis. In CA, Black et al. (eds.), Methods of soil analysis, Agronomy No. 9: 545-567. American Society of Agronomy, Madison, WI, USA.
Dixon, JB, Weed, SB, Kittrick, JA Milford, MH & White, JL 1977, Minerals in soil environments. Book. Published by Soil Science of America. Madison, Wisconsin, USA.
Eswaran, H, Rrich, PF Kimbie, JM, Beinroth, FA, Padmanabhan, E & Moncharoen, P 1976, Global carbon sinks, In: R, Lal, JM, Kimble, & BA Stewart (Eds.), Global climate change and pedogenic carbonates, CRC/Lewis Preww, Boca Ration, Florida, pp. 15-26.
Gilkers, RJ & Suddhiprakarn, A 1979, Biotite alteration in deeply weathering Granite: Morphological, mineralogical, and chemical properties. Clays and Clay Minerals, 27: 349-360.
Gjems, O 1967, Studies on clay minerals formation in soil profiles in Scandinavia. Norke Skogfars Qksvesen, 18: 305-315 (In Danish).
Islam, M, Stuart, R, Risto, A & Vesa, P 2002, Mineralogical changes during intense chemical weathering of sedimentary rocks in Bangladesh. Journal of Asian Earth Sciences, 20: 889-901.
Jackson, ML 1979, Soil chemical analysis. Advanced Course. 2nd Ed. Printed by the author, University of Wisconsin, Madison, Wisconsin.
Jackson, ML 1964, Chemical composition of soils. Inf. E-Bear (Ed.), Chemistry of the soil, Van No Strand Reinhold Co, New York, USA.
Muhammad, DAR 2007, The interaction between organic matter and smectite in some Iraqi soils of different agricultural land use. PhD Dissertation, College of Agriculture, University of Sulaimani, Iraq.
Richards, LA 1954, Diagnosis and improvement of saline and alkali soils. USDA Handbook No.60, Indian Edition, Prinlar for Oxford and IBH Publishing Co., New Delhi, India.
Scott, AD & Smith SJ 1967, Visible changes in marco mica particles that occur with potassium.
Weaver, CE 2013, Shale-slate metamorphism in southern Appalachians. Book, School of Geophysical Sciences. Georgia Institute of Technology, Atlanta, GA30332, USA.