Yaseen, A. A., and S. M. Kadim. 2017. “Effect Interaction Between Irrigation Interval, GA3 and Kimon -24 Organic Fertilizer in Some Physiological Parameters of Spinach ( Spinacia Oleracea L.)”. Al-Qadisiyah Journal of Pure Science 19 (4), 12-28. https://journalsc.qu.edu.iq/index.php/JOPS/article/view/299.