Abubaker, Jamal Abdallah Ahmed, Nazar Elnesairy, and Sanussi Ahmad. 2017. “Effects Non-Digested and Anaerobically Digested Farmyard Manures on Wheat Crop Cultivated in Desert Soil”. Journal of Aridland Agriculture 3 (January):1-10. https://doi.org/10.19071/jaa.2017.v3.3127.