Taghreed, A. H., and H. R. A.-F. Thamer. “Impact of Exogenous Ascorbic Acid and Putrescine on Vegetative, Root System Morphology and Chemical Composition of Clementine Mandarin Saplings”. Plant Science Today, vol. 11, no. 3, Aug. 2024, doi:10.14719/pst.4075.