Parnell, J. A., D. A. Simpson, K. Chayamarit, T. Boonthavikoon, P. C. Boyce, P. Chantaranothai, B. De Wilde, M. H. Jebb, A. M. Muasya, A. J. Paton, C. A. Pendry, R. Pooma, S. Suddee, and P. Wilkin. “The Bangkok Forest Herbarium, Royal Botanic Gardens Kew and Trinity College Dublin Plant Collecting Trips in Thailand 1995–2002”. Thai Forest Bulletin (Botany), no. 33, Dec. 2014, pp. 145-56, https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/24308.