Savo, V., Y. H. Lau, W. C. McClatchey, D. Reedy, A. K. Chock, K. W. Bridges, and Z. Ritchey. “‘Segues’ in Botanica: Una Documentazione Fotografica”. Ethnobotany Research and Applications, vol. 7, May 2009, pp. 135-46, https://ethnobotanyjournal.org/index.php/era/article/view/293.