1.
Yu TY, Turner IM, Cheek M. Revision of Chassalia (Rubiaceae-Rubioideae-Palicoureeae) in Borneo, with 14 new species. EJT [Internet]. 2021Mar.9 [cited 2024Apr.25];738(1):1-60. Available from: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1261