Thapyai, C., P. Wilkin, and K. Chayamarit. “Dioscorea Pseudo-Tomentosa Prain & Burkill (Dioscoreaceae); An Endangered Limestone Endemic of Central Thailand”. Thai Forest Bulletin (Botany), no. 34, Dec. 2014, pp. 215-21, https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24220.