Pattharahirantricin, Nannapat, and Manop Poopath. “Rhynchoglossum ausculum (Gesneriaceae), a new species from South-Western Thailand”. Thai Forest Bulletin (Botany) 49, no. 2 (July 24, 2021): 157–162. accessed April 7, 2025. https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/249876.