Al-Saedi, A.J.H., AND 		Al-Rubaiee, F.A.A..
" The Effect of Variety , Gibberellic Acid And NPK  Fertilizer and their Interactions On Absorption and  Transport Rates of Some Macronutrient Elements in  Chamomile plant" <em>Ibn AL- Haitham Journal For Pure and Applied Sciences</em> [Online], Volume 25 Number 2 (8 May 2017)