JONGKIND, Carel. Bertiera sinoensis Jongkind (Rubiaceae), a new forest liana from Liberia. African Biodiversity & Conservation, [S. l.], v. 47, n. 1, 2017. Disponível em: https://mail.abcjournal.org/index.php/abc/article/view/97. Acesso em: 2 may. 2026.