1. Beirne, P., & South, N. (2013). Issues in green criminology: Confronting harms against environments, humanity and other animals. Routledge.
2. Brisman, A., & South, N. (2014). Green cultural criminology: Constructions of environmental harm, consumerism, and resistance to ecocide. Taylor and Francis.
3. Convention on the International Trade in Endangered Species of Wild Flora and Fauna (CITES). (2017). CITES-listed medicinal plant species. Geneva, Switzerland, 1–39.
4. Gale, S. W., Fischer, G. A., Cribb, P. J., & Fay, M. F. (2018). Orchid conservation: Bridging the gap between science and practice. Botanical Journal of the Linnean Society, 186, 425–434.
5. Govaerts, R., Bernet, P., Kratochvil, K., Gerlach, G., Carr, G., Alrich, P., Pridgeon, A. M., Pfahl, J., Campacci, M. A., Holland, B. D., Tigges, H., Shaw, J., Cribb, P., George, A., Kreuz, K., & Wood, J. (2017). World checklist of Orchidaceae. Facilitated by the Royal Botanic Gardens http://wcsp.science.kew.org