"Paullinia L."Germplasm Resources Information Network. United States Department of Agriculture. 2006-03-29. Archived from the original on 2011-06-05. Retrieved 2010-01-19.
"Paullinia L."Germplasm Resources Information Network. United States Department of Agriculture. 2006-03-29. Archived from the original on 2011-06-05. Retrieved 2010-01-19.