PUFF, C.; CHAMCHUMROON, V. Thai Rubiaceae with hooks and thorns. Thai Forest Bulletin (Botany), [S. l.], n. 31, p. 65–74, 2014. Disponível em: https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24405. Acesso em: 2 apr. 2025.