• [Wiki] http://en.wikipedia.org/wiki/Podocnemis_lewyana.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Podocnemis_expansa.
• [edgeofexistence] http://www.edgeofexistence.org/species/magdalena-river-turtle/.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [PaezBock2015] Páaez, V. P., Bock, B. C., Espinal-Garcí, P. A., Rendón-Valencia, B. H., Alzate-Estrada, D., Cartagena-Otálvaro, V. M., and Heppel, S. S. (2015). Life history and demographic characteristics of the Magdalena river turtle (Podocnemis lewyana): Implications for management. Copeia, 103:1058--1074.
• [PaezCorr2009] Páez, V. P., Correa, J. C., Cano, A. M., and Bock, B. C. (2009). A comparison of maternal and temperature effects on sex, size, and growth of hatchlings of the Magdalena river turtle (Podocnemis lewyana) incubated under field and controlled laboratory conditions. Copeia, 2009:698--704.