Phonsena, Phongsak, and Willem J.J.O. De Wilde. 2014. “The Genus Aspidistra Ker Gawl. (Asparagaceae/Ruscaceae) in Thailand”. Thai Forest Bulletin (Botany), no. 38 (November):48-58. https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24351.