Najm, A. , Hadi, M. , Fazeli, F. , Darzi, M. , Shamorady, R. (2010). 'Effect of Utilization of Organic and Inorganic Nitrogen Source on the Potato Shoots Dry Matter, Leaf Area Index and Plant Height, During Middle Stage of Growth'. World Academy of Science, Engineering and Technology, Open Science Index 47, International Journal of Agricultural and Biosystems Engineering, 4(11), 852 - 855.