Kiew, Ruth, Simon Gardner, and Pindar Sidisunthorn. “Two New Species of Chionanthus (Oleaceae) from Southern Thailand”. Thai Forest Bulletin (Botany) 44, no. 2 (December 12, 2016): 125–127. Accessed September 26, 2022. https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/68294.