Pooma, Rachun. “Yang na Trees (Dipterocarpus alatus Roxb. ex G. Don), Dipterocarpaceae Along Chiang Mai-Lamphun Road An Analysis of Their Present Status and Conservation Needs”. Thai Forest Bulletin (Botany), no. 24 (December 8, 2014): 1–34. accessed September 15, 2026. https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/25044.