Abd El-Gawad, M., Ibrahim, A., Abdel- Hafeez, A., Ahmed, A. (2019). 'SPATIAL DISTRIBUTION OF SOIL CALCIUM CARBONATE, SALINITY, PH, SOIL TEXTURE AND ORGANIC MATTER CONTENT IN YOUSSEF EL-SEDIK DISTRICT AREA, FAYOUM GOVERNORATE, EGYPT', Egyptian Journal of Agricultural Sciences, 70(1), pp. 43-52. doi: 10.21608/ejarc.2019.210281