MIDDLETON, D. J.; TRIBOUN, P. Two new species of Petrocosmea (Gesneriaceae) from Thailand. Thai Forest Bulletin (Botany), [S. l.], n. 38, p. 42–47, 2014. Disponível em: https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24348. Acesso em: 11 aug. 2022.