Smitinand, T., T. Santisuk, and C. Phengklai. “The Manual of Dipterocarpaceae of Mainland South-East Asia”. Thai Forest Bulletin (Botany), no. 12, Jan. 2015, pp. 1-133, https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/28105.