1. Abou-Gabal, A., Abd-Al-Sabour, M. F., Mohamed, F. A., Ragab, M. A. 1990. Feasibility of sandy soil reclamation using local Tafla as soil conditioner. Ann. Agric. Sci. 34: 1003–1011.
2. Afifi, M. Y. 1986. Use of clay deposits in improving the physical properties of sandy soils. J. King Saud Univ. Agric. Sci. 8: 255–262.
3. Al-Darby, A. M., Al-Omran, A. M., Shalaby, A. A. 1993. Influence of water quality on water absorption capacity of soil gel-conditioners. J. King Saud Univ. Agric. Sci. 5: 111–117.
4. Al-Harbi, A. R., Al-Omran, A. M., Shalaby, A. A., Choudhury, M. I. 1996. Growth of cucumber to hydrophilic polymer application under soil moisture levels. J. Vegetable Crop Production 2: 57–64.
5. Al-Omran, A. M., Falatah, A. M., Shalaby, A. A., Mursi, M. M., Nadeim, M. S., Choudhury, M. I. 2002. Impact of natural deposits of Saudi Arabia on selected physical properties of calcareous sandy soil. Dirasa Agric. Sci. 29: 285–294.