Sae Wai, Jarearnsak, Obchant Thaithong, Kitichate Sridith, and DAVID J. MIDDLETON. “Willughbeia Tenuiflora (Apocynaceae: Rauvolfioideae), a New Record for Thailand”. Thai Forest Bulletin (Botany), no. 39 (November 24, 2014): 37–39. Accessed August 13, 2022. https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24175.