Raghad Tahrir Salim AlShallal, T. A. A. . “Effect of Biological and Chemical Fertilization on Growth of Root System and Secondary Metabolites of the Plant Pelargoniumgraveolens L”. Annals of the Romanian Society for Cell Biology, vol. 25, no. 6, May 2021, pp. 523 -, https://annalsofrscb.ro/index.php/journal/article/view/5317.