Sisakhon, K., Chayamarit, K. ., Wongkantrakorn, N. ., Middleton, D., Kiewbang, W. ., Salee, W. and Vajrodaya, S. . (2021) “The genus Phyllocyclus (Gentianaceae) in Thailand”, Thai Forest Bulletin (Botany), 49(2), pp. 173–177. doi: 10.20531/tfb.2021.49.2.03.