Galgaro, L.; Montenegro Valls, J. F.; Lopes, C. R. (1997). "Study of the genetic variability and similarity among and within Arachis villosulicarpa, A. pietrarellii and A. hypogaea through isoenzyme analysis". Genetic Resources and Crop Evolution. 44: 9–15. doi:10.1023/A:1008609115357.