SAE WAI, J.; THAITHONG, O.; SRIDITH, K.; MIDDLETON, D. J. Willughbeia tenuiflora (Apocynaceae: Rauvolfioideae), a new record for Thailand. Thai Forest Bulletin (Botany), [S. l.], n. 39, p. 37–39, 2014. Disponível em: https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24175. Acesso em: 11 aug. 2022.