Al-Mahdawe, muthana Mohammad. 2015. “RESPONSE OF Calendula Officinalis L. PLANTS TO SPRAYING OF LIQUORICE AND ORGANIC FERTILIZER FOR POULTRY DROPPING EXTRACTS ”. Diyala Agricultural Sciences Journal 7 (2):133-42. https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/1644.