El-Mergawi, Ragab, and E.R. El-Desoki. 2018. “Allelopathic Activities of Celery Extract and Its Fractions Against Corchorus Olitorius, Echinochloa Crusgalli and Portulaca Oleracea Weeds”. Advances in Horticultural Science 32 (4):503-10. https://doi.org/10.13128/ahs-22083.