PUFF, C.; CHAYAMARIT, K. Additional to “Rubiaceae of Thailand. A pictorial guide to indigenous and cultivated genera”. Thai Forest Bulletin (Botany), [S. l.], n. 36, 2014. Disponível em: https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24182. Acesso em: 19 mar. 2024.