Mohammed, H., 		Adam, H., 		Idris, S., & 		Muhieldeen, O.
(2016).
 Determination of crop coefficients, water requirements and water productivity for maize (Zea mays L.) under central Gezira clay soil conditions, Sudan.
<em>Gezira Journal Of Agricultural Science, 14</em>(2).
Retrieved from <a href="http://37.60.236.48/index.php/gjas/article/view/123" target="_new">http://37.60.236.48/index.php/gjas/article/view/123</a>