Fallah, Fahimeh, and Farrokh Ghahremaninejad. “Ploidy Level Determination of Hedera (Araliaceae) With an Emphasis on Discussable Species (Hedera Hibernica)”. Caryologia 74, no. 1 (July 20, 2021): 109-116. Accessed December 6, 2022. https://riviste.fupress.net/index.php/caryologia/article/view/881.