YU, Tian Yi; TURNER, Ian M.; CHEEK, Martin. Revision of Chassalia (Rubiaceae-Rubioideae-Palicoureeae) in Borneo, with 14 new species. European Journal of Taxonomy, [S. l.], v. 738, n. 1, p. 1–60, 2021. DOI: 10.5852/ejt.2021.738.1261. Disponível em: https://ejt.sandbox.publicknowledgeproject.org/index.php/ejt/article/view/1261. Acesso em: 25 apr. 2026.