Suddee, Somran, and Bob Harwood. “Gastrodia Verrucosa (Orchidaceae), a New, But Not Unexpected, Record for Thailand”. Thai Forest Bulletin (Botany), no. 37 (1): 144-146. Accessed December 7, 2019. https://www.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24346.