LATEF, Mohammed FADEL, et al. “EFFECT SPRAY DATES AND CONCENTRATION OF NITROGEN FERTILIZER IN VEGETATVE GROWTH TRAMS PLANTS Melia Azedarach L”. Diyala Agricultural Sciences Journal , vol. 2, no. 1, June 2010, pp. 88-98, https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/3139.