Chantanaorrapint, S., and A. Chantanaorrapint. “Thismia Clavigera (Thismiaceae), a New Record for Thailand”. Thai Forest Bulletin (Botany), no. 37, Nov. 2014, pp. 27-31, https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24329.