Turner, Ian M., and Timothy M.A. Utteridge. “Whither Polyalthia (Annonaceae) in Peninsular Malaysia? Synopses of Huberantha, Maasia, Monoon and Polyalthia s.S.”. European Journal of Taxonomy0, no. 183 (March 22, 2016). Accessed April 19, 2024. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/306.