Ramadan Mohamed, A. and Ali Elssaidi, M. (2019) “Fractionation of Organic and Inorganic Phosphorus in Sandy Soils irrigated by Treated Wastewater Cultivated by Hordeum vulgre & Vicia faba ”, Journal of Pure & Applied Sciences, 18(4), pp. 92–97. doi:10.51984/jopas.v18i4.393.